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**2017 [#e03ba5fa]
1. Md. A. Helal, Md. Aftabuzzaman, S. Tsukada, S. Kojima,~ 
Scientific Reports 7:44448 (2017).~
“Role of polar nanoregions with weak random fields in Pb-based perovskite ferroelectrics”

2. &#352;ar&#363;nas Svirskas, J&#363;ras Banys, and Seiji Kojima,~
Journal of Applied Physics 121, 134101 (2017),~
”Broadband dielectric spectroscopy of Pb-based relaxor ferroelectric (1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 with intermediate random fields”

**2016 [#e03ba5fa]
1.	V. Sivasubramanian, V. Subramanian, and S. Kojima~
Phys. Rev. B 93, 054115-1-7 (2016)~
Classical ferroelectriclike behavior of highly ordered Pb(Sc1/2Nb1/2)O3 studied by dielectric and Brillouin scattering spectroscopy

2.	Md. Saidul Islam, Shinya Tsukada, and Seiji Kojima~
J. Appl. Phys. 119, 094106-1-5 (2016)~
“Anomalous thermal hysteresis of two first order phase transitions in relaxor
ferroelectric 0.945 Pb(Zn1/3Nb2/3)O3-0.055PbTiO3 crystals studied by Brillouin
scattering”
3.	M. M. Rahaman, T. Imai, T. Sakamoto, S. Tsukada, and S. Kojima~
Scientific Report, 6:23898-1-10 (2016).~
“Fano resonance of Li-doped KTa1&#8722;xNbxO3 single crystals studied by Raman scattering”

4.	Md Aftabuzzaman and S. Kojima,~
Jpn. J. Appl. Phys. 55, 07KB03-1-6 (2016).~
“Electric field effect of relaxor ferroelectric (1-x)Pb(Mg1/3Nb2/3)O3&#8211;xPbTiO3 crystals near morphotropic phase boundary composition probed by Brillouin scattering”

5.	Md Al Helal, T. Mori, and S. Kojima~
Ferroelectrics 499, 107&#8211;114 (2016).~
“Terahertz time-domain spectroscopy and Raman scattering studies of incipient ferroelectric BaZrO3”
6.	S. Kojima and T. Mori~
Ferroelectrics 499, 100&#8211;106 (2016).~
“Terahertz time-domain spectroscopy of Raman inactive phonon-polariton in strontium titanate”

7.	Seiji Kojima, Kazuki Kanehara, Takuya Hoshina, and Takaaki Tsurumi,~
Jpn. J. Appl. Phys. 55, 10TC02-1-5 (2016).~
“Optical phonons and polariton dispersions of congruent LiNbO3 studied by far-infrared spectroscopic ellipsometry and Raman scattering”

8.	Md Aftabuzzaman, J. Dec, W. Kleemann, and S. Kojima,~
Jpn. J. Appl. Phys. 55, 10TC01-1-5 (2016).~
“Field dependent elastic anomaly in uniaxial tungsten bronze relaxors”

9.	S. Kojima and T. Mori,~
Ferroelectrics 500, 183&#8211;202 (2016).~
“Terahertz time-domain spectroscopy of infrared active soft mode and phonon-polariton dispersion”

10. M. Kabeya, T. Mori, Y. Fujii, A. Koreeda, B. W. Lee, J.-H. Ko, and S. Kojima,~
Phys. Rev. B 94, 224204 (2016).~
“Boson peak dynamics of glassy glucose studied by integrated terahertz-band spectroscopy”

**2015 [#e03ba5fa]
1.	I. Jankowska-Sumara, M. Ptak, M. Maczka, A. Majchrowski, T.H. Kim, and S. Kojima,~
Journal of Alloys and Compounds 644 (2015) 854&#8211;861, ~
“Temperature-dependent Raman scattering study of tin modified PbZrO3 and PbHfO3 single crystals”
2.	D.-M. Shin, Y.-H. Hwang, J.-H. Ko, and S. Kojima,~
Current Applied Physics 15 (2015) 958-963, ~
“Relaxation behaviors of enantiomorphic S-ibuprofen as revealed by dielectric and photon correlation spectroscopies”.

3.	K. Matsumoto and S. Kojima,~
Japanese Journal of Applied Physics 54, 10NC04-1-4, (2015).~
“Effect of electric field on uniaxial relaxor ferroelectric strontium barium niobate”.

4.	S. Koda, T. Shibata, I. &#8211;S. Park , and S. Kojima,~
Current Applied Physics 15 (2015) 805-810. ~
“Relaxation dynamics and fragility during liquideglass transitions of poly(propylene glycol)s”.

5.	M. Maczka, T. H. Kim, A. Gagor, I. Jankowska-Sumara, A. Majchrowski, and S. Kojima, ~
Journal of Alloys and Compounds 622 (2015) 935&#8211;941.~
” Brillouin scattering, DSC, dielectric and X-ray diffraction studies of phase transitions in antiferroelectric PbHfO3:Sn”.

6.	S. Koda, H. Takayama, T. Shibata, T. Mori, and S. Kojima, ~
J. Kor. Phys. Soc. 66, 1376&#8764;1380 (2015). ~
“Small Angle Neutron Scattering Study on the Structural Variation of Lysozyme in Bioprotectants”.

7.	S. Kojima, T. Mori, T. Shibata, and Y. Kobayashi,~
Pharm Anal Acta 6, (2015) 1000401-1-6.~
 “Broadband Terahertz Time-Domain and Low-Frequency Raman Spectroscopy of Crystalline and Glassy Pharmaceuticals”.
"Broadband Terahertz Time-Domain and Low-Frequency Raman Spectroscopy of Crystalline and Glassy Pharmaceuticals”.

8.	Y. Kobayashi, T. Shibata, T. Mori, and S. Kojima,~
International Letters of Chemistry, Physics and Astronomy 7 (2015) 16-22. ~
“Terahertz Time-Domain Spectroscopy and Low-Frequency Raman Scattering of Crystalline and Glassy Pharmaceutical Indapamide”.

9.	T. Shibata, T. Mori, and S. Kojima,~
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 150 (2015) 207&#8211;211.~
“Low-frequency vibrational properties of crystalline and glassy indomethacin probed by terahertz time-domain spectroscopy and low-frequency Raman scattering”.

10.	Md. M. Rahaman, T. Imai, J. Kobayashi, and S. Kojima~
Jpn. J. Appl. Phys. 54, 10NB01-1-5 (2015).~
“Effect of Li-doping on polar-nanoregions in K(Ta1-xNbx)O3 single crystals”

11.	Y. Christy, K. Matsumoto, and S. Kojima,~
Jpn. J. Appl. Phys. 54, 07HB02-1-4 (2015).~
“Elastic anomaly and aging of new type of incommensurate phase transition in ferroelectric barium sodium niobate”.

12.	 M. A. Helal, T. Mori, and S. Kojima,~
Appl. Phys. Lett. 106, 182904-1-4 (2015).~
“Softening of infrared-active mode of perovskite BaZrO3 proved by terahertz timedomain spectroscopy”.

13.	T. Mori, H. Igawa, D. Okada, Y. Yamamoto, K. Iwamoto, N. Toyota, and S. Kojima,~
J. Mol. Struc. 1090 (2015) 93&#8211;97.~ 
“Broadband terahertz time-domain spectroscopic study on form II polyvinylidene fluoride”.

14.	S. Koda, T. Mori, and S. Kojima,~
International Letters of Chemistry, Physics and Astronomy, 62, pp 15-20 (2015)~ 
“Broadband Terahertz Time-Domain Spectroscopy and Low-Frequency Raman Scattering of Propylene Glycol”

15.	D. Shimizu, S. Tsukada, M. Matsuura, J. Sakamoto, S. Kojima, K. Namikawa, J. Mizuki, and K. Ohwada,~ 
Phys Rev. B 92, 174121-1-5 (2015). ~
“Negative correlation between electrical response and domain size in Ti-composition-gradient Pb[(Mg1/3Nb2/3)1&#8722;xTix]O3 crystal near morphotropic phase boundary”.

16.	S. Kojima and T. Mori,~ 
Ferroelectrics, 485, pp.13&#8211;19, (2015).~ 
“Broadband Terahertz Time-Domain Spectroscopy of Complex Phonon-Polariton Dispersion Relation”

17.	T. Sasaki, Y. Hashimoto, T. Mori, and S. Kojima~
International Letters of Chemistry, Physics and Astronomy, 62, pp 29-33 (2015).~ 
“Broadband Terahertz Time-Domain Spectroscopy of Archaeological Baltic Amber”

18.	A. I. Fedoseev, E. A. Popova, P. P. Syrnikov, S. Kojima, and S. G. Lushnikov,~
JETP Letters, 2015, Vol. 102, No. 12, pp. 789&#8211;795~
“Multicomponent Quasi-Elastic Light Scattering in Na1/2Bi1/2TiO3 as Studied by Broadband Brillouin Scattering”


**2014 [#e03ba5fa]
***Original papers [#x66964d3]
1. M. Maczka,; T.H. Kim,; M. Ptak; I. Jankowska-Sumara; A. Majchrowski,; S. Kojima~ 
J. Alloys Comp. 587（2014）273-277~
“High-resolution Brillouin scattering studies of phase transitions and precursor phenomena in PbZr0.78Sn0.22O3 single crystals”~
2. T. Shibata, H. Takayama, T. H. Kim, and S. Kojima~
Chem. Phys. Lett. 592, 80-84 (2014).~
"Acoustic and thermal anomalies in a liquid-glass transition of racemic S(+)-R(-) ketoprofen”~
3. T.Shibata, H. Igawa, T.H. Kim, T. Mori, and S. Kojima~
J. Mol. Struct. 1062,185-188 (2014).~
"Glass transition dynamics of anti-inflammatory ketoprofen studied by Raman scattering and terahertz time-domain spectroscopy"~
4. G. Shabbir and S. Kojima~
Euro. Phys. Lett. 105 (2014) 57001-1-4.~
“Anomalous variations in elastic properties of lead zirconate niobate-lead titanate single crystals in the vicinity of its ferroelectric phase transition”~
5.	M. Kodama and S. Kojima~
Phys. Chem. Glasses: Eur. J. Glass Sci. Technol. B, 55 (2014) 1&#8211;12.~
“Velocity of sound in and elastic properties of alkali metal borate glasses”~
6. H. Igawa, M. Mori, and S. Kojima~
Jpn. J. Appl. Phys. 53 (2014) 05FE01.~
“Terahertz time-domain spectroscopy of congruent LiNbO3 and LiTaO3 crystals”~
7. H. Takayama, T. Shibata, Y. Kuroda, S. Koda, and S. Kojima~
Jpn. J. Appl. Phys. 53 (2014) 07KB06. ~
“Gigahertz elastic properties of cryoprotective aqueous solutions of inonic liquids and trehalose”~
8. T. Imai, S. Toyoda, J. Miyazu, J. Kobayashi, and S. Kojima~
Applied Physics Express 7, 071501-1-4 (2014).~
“Changes in permittivity of KTa1-xNbxO3 crystals induced by electron injection in relation to nonlinear dielectric response”~
9. A. Muhtar, S. Kojima, N. Yasuda, and J. Russell~
Ferroelectrics, 467, 138-145 (2014).~
“Successive Pressure-Induced Structural Transitions in Relaxor Lead Indium Niobate”~
10. S. Aramomi, Y. Matsuda, and S. Kojima~
J. Non-Crys. Solid. 401, 142-146 (2014).~
“High temperature Brillouin scattering study on elastic properties of lithium cesium borate glasses, crystals and melts”~
11. M. K. Singh, G. Singh, T. H. Kim, S. Kojima, R. S. Katiyar, and J. F. Scott~
EPL, 107 , 26004 (2014). ~
”High-temperature phase transitions in SrHfO3: A Raman scattering study”~
12. M. Mczka, M. Ptak, and S. Kojima ~
Appl. Phys. Lett. 104, 222903 (2014) ~
“Brillouin scattering study of ferroelectric transition mechanism in multiferroic metalorganic frameworks of [NH4][Mn(HCOO)3] and [NH4][Zn(HCOO)3]”~
13. K. Suzuki, K. Matsumoto, J. Dec, T. &#321;ukasiewicz, W. Kleemann, and S. Kojima ~
Phys. Rev. B 90, 064110 (2014). ~
”Critical slowing down and elastic anomaly of uniaxial ferroelectric Ca0.28Ba0.72Nb2O6 crystals with tungsten bronze structure”~
14. S. Kojima and T. Mori,~
IOP Conf. Ser.: Mater. Sci. Eng. 54, 012001-1-6 (2014).~
“Broadband terahertz time-domain spectroscopy : crystalline and glassy drug materials”.~
~

**2013 [#e03ba5fa]
***Original papers [#x66964d3]
1. T. Shibata, A. Tominaga, H. Takayama, and S. Kojima~
AIP Conf. Proc. 1518, 312-315 (2013).~
“Dynamical properties in supercooling liquid of trehalose aqueous solution studied by Brillouin scattering”~
2. H. Takayama, T. Shibata, T. Ishii, and S. Kojima~
J. Kor. Phys. Soc. 62, 987-990 (2013).~
“Brillouin-scattering Study of Liquid-glass Transitions in Ternary Mixtures of Water, Trehalose, and an Ionic Liquid”~
3. S. Tsukada, T. H. Kim, and S. Kojima~
APL Mater. 1, 032114-1-7 (2013).~
“Large acoustic thermal hysteresis in relaxor ferroelectric Pb(Zn1/3Nb2/3)O3-PbTiO3”~
4. S. Tsukada, Y. Hidaka, S. Kojima, A. A. Bokov, and Z.-G. Ye~
Phys. Rev. B 87, 014101-1-8 (2013).~
“Development of nanoscale polarization fluctuations in relaxor-based (1-x)Pb(Zn1/3Nb2/3)O3-xPbTiO3 ferroelectrics studied by Brillouin scattering”~
5. M. M&#261;czka, A. Majchrowski, J. Hanuza, and S. Kojima~
J. Phys.: Condens. Matter 25, 025901-1-8 (2013).~
“Temperature-dependent IR and Raman scattering studies of phase transitions in K2MgWO2(PO4)2”~
6. J. Zushi, T. Ariizumi, S. Kojima, Ruiping Wang, and H. Bando~
Jpn. J. Appl. Phys. 52, 07HB02-1-5 (2013).~
“Formation of Morphotropic Phase Boundary in (Na0.5K0.5)NbO3&#8211;BaZrO3&#8211;(Bi0.5Li0.5)TiO3, Lead-Free Piezoelectric Ceramics”~
7. T. H. Kim, J.-H. Ko, H. Takayama, T. Shibata, and S. Kojima~
AIP Conf. Proc. 1518, 316-319 (2013).~
“Glass transition dynamics of enantiomer (+)-ibuprofen”~
8. K. Iwamoto, T. Mori, S. Kajitani, H. Matsumoto, N. Toyota, K. Suekuni, M. A. Avila, Y. Saiga, and T. Takabatake~
Phys. Rev. B 88, 104308-1-9 (2013).~
“Optical conductivity spectra of rattling phonons and charge carriers in the type-VIII clathrate Ba8Ga16Sn30”~
9. K. Iwamoto, S. Kushibiki, H. Honda, S.Kajitani, T. Mori, H. Matsumoto, N. Toyota, K. Suekuni, M. A. Avila, and T. Takabatake~
J. Phys. Soc. Jpn. 82, 024601-1-7 (2013).~
“Anomalous Infrared Spectra of Hybridized Phonons in Type-I Clathrate Ba8Ga16Ge30”~

**2012 [#e03ba5fa]
***Review papers [#x66964d3]
1. S. Kojima, M. Ahart, V. Sivasubramanian, A. A. Bokov, Z.-G. Ye~
J. Adv. Dielect., 2 (2012) 1241004.~
“Precursor Dynamics of Pb(B1/2B’1/2)O3-type Relaxor Ferroelectrics Studied by Broadband Micro-Brillouin Scattering”~

***Original papers [#x66964d3]
1. E. Dul’kin, S. Kojima, and M. Roth~
J. Appl. Phys. 111, 084101 (2012).~
“Low temperature anomalous field effect in SrxBa1-xNb2O6 uniaxial relaxor ferroelectric seen via acoustic emission”~
2. K. Kaneda, K. Arae, M. Kodama, and S. Kojima~
J. Non-Crys. Solids, 358, 799 (2012).~
“Aging, glass transition, supercooled and equilibrium liquid states of alkali germanate glasses studied by Brillouin scattering”~
3. M. M&#261;czka, A. V. Knyazev, A. Majchrowski, J. Hanuza, and S. Kojima~
J. Phys.: Condens. Matter 24, 195902 (2012).~
“Temperature-dependent Raman scattering study of the defect pyrochlores RbNbWO6 and CsTaWO6”~
4. J.-H. Ko, T. H. Kim, S. Kojima, K. Roleder, D. Rytz, C. J. Won, N. J. Hur, J. H. Jung, T.-Y. Koo, S. B. Kim, and K. Park~
Current Applied Physics, 12 (2012) 1185-1189.~
“Logarithmic temperature variations of the elastic constant of barium titanate near the ferroelectric phase transition”~
5. T. H. Kim, J.-H. Ko, S. Kojima, A. A. Bokov, X. Long, and Z.-G. Ye~
Appl. Phys. Lett., 111, 082903 (2012).~
“Phase transition behaviors of PbZr1&#8722;xTixO3 single crystals as revealed by elastic anomalies and central peaks”~
6. T. H. Kim, S. Kojima, and J.-H. Ko~
J. Appl. Phys., 111, 054103 (2012).~
“Phase transition behaviors in relaxor ferroelectric [001]-poled Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 single crystals studied by Brillouin light scattering and dielectric spectroscopies”~
7. M. S. Islam, J. Kano, Q. R. Yin, and S. Kojima~
J. Electroceram., 28 (2012) 89-94.~
“Doping effects on dynamical physical properties of Ca0.6Sr0.4Bi4Ti4O15 ferroelectric ceramics with layered-perovskite structure”~
8. J.-H. Ko, T. H. Kim, S. Kojima, K. Roleder, and D. Rytz~
Phase Transitions, 85 (2012) 718-726.~
“Precursor dynamics in rhodium-doped barium titanate single crystals studied by Brillouin light scattering and birefringence measurements”~
9. V. Sivasubramanian and S. Kojima~
Phys. Rev. B, 85, 054104 (2012).~
“Brillouin scattering studies of acoustic phonon modes and central peak in single-crystal Pb(Sc1/2Ta1/2)O3”~
10. A. M. Pugachev, V. I. Kovalevskii, N. V. Surovtsev, S. Kojima, S. A. Prosandeev, I. P. Raevski, and S. I. Raevskaya~
Phys. Rev. Lett., 108, 247601 (2012).~
“Broken Local Symmetry in Paraelectric BaTiO3 Proved by Second Harmonic Generation”~
11. K. Iwamoto, T. Mori, S. Kushibiki, H. Honda, H. Matsumoto, K. Suekuni, M. A. Avila, T. Takabatake, and N. Toyota~
Key Eng. Mater. 508, 341-1-6 (2012).~
“Optical Conductivity of Rattling Phonons in Type-I Clathrates Ba8Ga16Ge30 and Ba8Ga16Sn30”~


**2011 [#e03ba5fa]
***Review papers [#x66964d3]

1.	A. A. Bokov, B. J. Rodriguez, X. Zhao, J.-H. Ko, S. Jesse, X. Long, W. Qu, T. H. Kim, J. D. Budai, A. N. Morozovska, S. Kojima, X. Tan, S.V. Kalinin, and Z.-G. Ye ~
Z. Kristallogr. 226 (2011) 99-107 . ~
“Compositional disorder, polar nanoregions and dipole dynamics in Pb(Mg1/3Nb2/3)O3-based relaxor ferroelectrics” ~
2. S. Kojima and J.-H. Ko, ~
Curr. Appl. Phys. 11 (2011)S22-S32. ~        
“Broadband micro-Brillouin scattering spectroscopy of Pb(B1/3B02/3)O3-based
relaxor ferroelectrics”~ 

***Original papers [#x66964d3]

1.	R. Ohta, J. Zushi, T. Ariizumi, and S. Kojima, ~
Appl. Phys. Lett. 98 (2011) 092909. ~
Virtual Journal of Nanoscale Science & Technology, the March 21, 2011 issue, ~“Order&#8211;disorder behavior of ferroelectric phase transition of KTa1&#8722;xNbxO3 probed by Brillouin scattering” ~
2. S. Kojima, S. Tsukada, Y. Hidaka, A.A. Bokov, and Z.-G. Ye, ~
J. Appl. Phys.109 (2011) 084114~
“Broadband Gigahertz Dynamics of Relaxor Ferroelectric Pb(Sc1/2Nb1/2)O3-xPbTiO3 Single Crystal Probed by Brillouin Scattering” ~
3.E. Dul'kin, S. Kojima, and M. Roth ~ 
J. Appl. Phys. 110 (2011) 044106,~
“Precursor Behavior and Field Effect in Uniaxial Sr0.75Ba0.25 Nb2O6 Relaxor　Detected by Acoustic Emission”~
4. M. Maczka, L. Makalik, and S. Kojima ~
J. Phys. Cond. Matt. 23 (2011) 405902. ~
“Temperature-dependent Raman scattering study of cation-deficient Aurivillious phases : BiWO6 and Bi2W2O9”~
5. J.-H.Ko, T.H. Kim, K. Roleder, D. Rytz, and S. Kojima~
Phys. Rev. B 84, 094123 (2011)(1-10). ~ 
“Precursor dynamics in the ferroelectric phase transition of barium titanate single crystals studied by Brillouin scattering”~
6. Jae-Hyeon Ko, Tae Hyun Kim, Kwang-Sei Lee, Seiji Kojima,  ~
Chem. Phys. Lett.  515 (2011) 221-225. ~
“Brillouin scattering study on crystalline and glassy states of anti-inflammatory racemic S(+)&#8211;R(_) ibuprofen” ~
7.	Jae-Hyeon Ko, Tae Hyun Kim, Seiji Kojima, Ki-Soo Lim, and Tae-Yeong Koo ~
Appl. Phys. Lett. 99 (2011) 212902.  ~
“Effects of Sr content and bias field on acoustic properties of strontium barium niobate studied by Brillouin light scattering”~
8. M. Kawashima, Y. Matsuda, and S. Kojima ~
J. Mol. Struc.993 (2011) 155. ~
“Temperature dependence of elastic properties in alkali borate binary glasses"~
9.K. Kaneda, K. Arae, M. Kodama, and S. Kojima,~
Journal of Non-Crystalline Solids (to be published)~
“Aging, glass transition, supercooled and equilibrium liquid states of alkali germanate glasses studied by Brillouin scattering”~

**2010 [#e03ba5fa]
***Review papers [#x66964d3]
1. S. Kojima~
Jpn. J. Appl. Phys. 49 (2010) 07HA01~
“Gigahertz Acoustic Spectroscopy by Micro-Brillouin Scattering” ~

***Original papers [#x66964d3]
1. J. &#8211;H. Ko, D. H. Kim, S. Tsukada, S. Kojima, A. A. Bokov, and Z. -G. Ye ~ 
Phys. Rev. B 82 (2010),104110 ~ 
Crossover in the mechanism of ferroelectric phase trnaisition of Pb[(Mg1/3Nb2/3)1-xTix]O3 single crystals studied by Brillouin scattering

2. T. Kim, S. Kojima, K. Park, S. Kim and J. &#8211;H. Ko ~ 
J. Phys. Cond. Matt. 22 (2010) 225904 ~
Precursor polar clusters in the　paraelectric phase of ferroelectric Ba0.8Ca0.2TiO3 single crystals studied by Brillouin light scattering~

3. M. Ahart, H. Mao, R. E. Cohen, and R. J. Hemley, G. A. Samara, Z.-G. Ye, and S. Kojima~
J. Appl. Phys. 107 (2010) 074110~
Pressure effects on relaxor ferroelectricity of Pb(Sc1/2Nb1/2)O3

4. J.-H. Ko, T. H. Kim, S.Kojima, A. A. Bokov and Z.-G. Ye~
J. Appl. Phys. 107 (2010) 045108~
The effect of chemically ordered regions on the acoustic behaviors in Pb(Mg1/3Nb2/3)O3 studied by Brillouin scattering

5. Y. Matsuda, M. Kawashima, Y. Moriya, T. Yamada, O. Yamamuro, and S. Kojima~
J. Phys. Soc. Jpn. 79 (2010) 033801~
Composition Dependence of the Boson Peak and Universality in Lithium Borate Binary Glasses: Inelastic Neutron and Raman Scattering Studies

6. F. Shikanai, S. Tsukada, J. Kano, and S. Kojima~
Phys. Rev. B 81 (2010) 012301~
Acoustic phonons and a central mode in the protonic conductor K3H(SeO4)2

**2009 [#e03ba5fa]
***Original papers [#x66964d3]

6~
A. V. Svanidze1, H. Huth, S. G. Lushnikov, S. Kojima, and C. Schick~
Appl. Phys. Lett. 95, 263072 (2009)~
Phase transition in tetragonal hen-egg white lysozyme crystals: the evidence from Brillouin light scattering and differential AC-nanocalorimetry

5~
M. S. Jang, M.K. Ryu, M. H. Yoon, S.H.Lee, H.K.Kim, A.Onodera, and S. Kojima~ Curr. Appl. Phys. 9, 651 (2009)~
A study of the Raman spectra of Al-doped and Ga-doped ZnO ceramics

4~
G. Shabbir and S. Kojima~
J. Appl. Phys. 105, 034106 (2009)~
Acoustic phonon mode anomalies in lanthanum doped lead zirconate-titanate relaxor ferroelectric ceramics

3~
V. Sivasubramanian, S. Tsukada, and S. Kojima~
J. Appl. Phys. 105, 014108 (2009)~
Anomalous behavior of acoustic phonon and central peak in Pb[In1/2Nb1/2)0.65Ti0.35]O3 single crystal

2~
S. Tsukada, Y. Hiraki, Y. Akishige, and S. Kojima~
Phys. Rev. B 80, 012102 (2009)~
Enhanced polarization fluctuation in KF-substituted BaTiO3 single crystals
 
1~
M. Ahart, A. Hushur, Y. Bing, Z. Ye, R. J. Hemley, and S. Kojima~
Appl. Phys. Lett. 94, 142906 (2009)~
Critical slowing down of relaxation dynamics near the Curie temperature in the relaxor Pb(Sc0.5Nb0.5)O3

**2008 [#e03ba5fa]
***Original papers [#x66964d3]

11~
Jae-Hyeon Ko, Kwang-Sei Lee b, Yuji Ike, Seiji Kojima~
Chem. Phys. Lett. 465, 36 (2008)~
Elastic properties of aspirin in its crystalline and glassy phases studiedby micro-Brillouin scattering

10~
J.-H. Ko, D. H. Kim and S. Kojima~
Phys. Rev. B 77, 104110 (2008)~
Central peaks, acoustic modes and the dynamics of polar nanoregions in Pb(Zn1/3Nb2/3)xTi1-x]O3 single crystals studied by Brillouin spectroscopy

9~
M. Maczka, J. Hanuza and S. Kojima~
Phys. Rev. B 77, 104116 (2008)~
High-resolution temperature dependent Brillouin scattering studies of ferroelectric K3Nb3O6(BO3)2

8~
S. G. Lushnikov, A. I. Fedoseev, S. N. Gvasaliya~
Phys. Rev. B 77, 104122 (2008)~
Anomalous dispersion of the elastic constants at the phase transformation of the Pb(Mg1/3Nb2/3)O3 relaxor ferroelectrics

7~
G.-M. Rotaru, S. N. Gvasaliya, B. Roessli, S. Kojima, SD. G. Lushnikov, and P. Gunter~
Appl. Phys. Lett. 93, 032903 (2008)~
Evolusiton of the neutron quasiellastic scattering through the ferroelectric phase transition in 93%PbZn1/3Nb2/3O3-7%PbTiO3

6~
Y. Matsuda, Y. Fukawa, Y. Ike, M. Kodama and S. Kojima~
J. Phys. Soc. Jpn. 77, 084602 (2008)~
Dynamic Specific Heat, Glass Transition, and Non-Debye Nature of Thernal Relaxation in Lithium Borate Glasses

5~
J.-H. Ko, S. Kojima, T.-Y. Koo, J. H. Jung, C. J. Won, and N. J. Hur~
Appl. Phys. Lett. 93,102905 (2008)~
Elastic softening and central peaks in BaTiO3 single crystals above the cubic-tetragonal phase-transition temperature

4~
S. Tsukada and S. Kojima~
Phys. Rev. B 78, 144106 (2008)~
Broadband light scattering of two relaxation processes in relaxor ferroelectric 0.93Pb(Zn1/3Nb2/3)O3-0.07PbTiO3 single crystals

3~
S. Tsukada, Y. Ike, R. Wang and S. Kojima~
J. Phys. Soc. Jpn. 77, 033707 (2007)~
Dynamical Properties of Polar Nanoregions of Relaxor Ferroelectric 0.71Pb(Ni1/3Nb2/3)O3-0.29PbTiO3

2~
J. -H. Ko, D. H. Kim and S. Kojima~
Phys. Rev. B77, 104110 (2008)~
Central peaks and the dynamics of polar nano regions in Pb(Zn1/3Nb2/3)1-xTixO3  single crystals studied by Brillouin spectroscopy 

1~
S.G. Lushnikov, A.I. Fedoseev, S.N. Gvasaliya and S. Kojima~
Phys. Rev. B 77,104122 (2008)~
Anomalous dispersion of the elastic constants at the phase transformation of the PbMg1/3Nb2/3O3 relaxor ferroelectric

**2007 [#e03ba5fa]
***Original papers [#x66964d3]

9~
J.-H. Ko, S. Kojima A. A. Bokov and Z. G. Ye~
Appl. Phys. Lett. 91 (2007) 252909~
Light scattering study of acoustic phonon modes and central peaks in Pb(Mg1/3Nb2/3)0.45Ti0.55O3 single crystals

8~
J.-H. Ko and S. Kojima~
Appl. Phys. Lett. 91 (2007) 082903~
Intrinsic and extrinsic central peaks in the Brillouin light scattering spectrum of the uniaxial ferroelectric relaxor Sr0.61Ba0.39Nb2O6

7~
G. Shabbir and S. Kojima~
Appl. Phys. Lett. 91 (2007) 062911~
Central peak and acoustic anomalies of the relaxor ferroelectric lead manganese niobate-lead titanate single crystal studied by the micro-Brillouin scattering

6~
A. Hushur, S.N. Gvasaliya, B. Roessli, S.G. Lushnikov and S. Kojima~
Phys. Rev. B 76 (2007) 064104~
Ferroelectric phase transition of stoichiometric lithium tantalate studied by Raman, Brillouin, and neutron scattering

5~
Y. Ike, S. Tsukada and S. Kojima~
Rev Sci. Inst. 78 (2007) 076104~
High-resolution Brillouin spectroscopy with angular dispersion-type Fabry Perot interferometer and its application to a quartz crystal

4~
M. Maczka, J. Hanuza, A. Majchrowski and S. Kojima~
Phys. Rev. B 75 (2007) 214105-1-9~
Heat capacity and high-resolution Brillouin scattering studies of phase transitions in K2MgWO2(PO4)2: Observation of the coupled soft optic and acoustic mode

3~
M. Maczka, J. Hanuza and M. Majchurouski and S. Kojima~
Appl. Phys. Lett. 90 (2007) 112904~
Diredct evidence of an order-disorder nature of ferroelectric phase transitiosn of K2MgWO2(PO4)2

2~
Jae-Hyeon Ko, Do Han Kim, and Seiji Kojima~
Appl. Phys. Lett. 90 (2007) 112904~
Correlation between the dynamics of polar nanoregions and temperature evolution of central peaks in Pb[(Zn1/3Nb2/3)0.91Ti0.09]O3 ferroelectric relaxors

1~
S. N. Gvasaliya, B. Roessli, R. A. Cowley, S. Kojima and S. G. Lushnikov~
J. Phys.: Condens. Matter 19 (2007) 016219~
Neutron scattering studies of the mechanism of ferroelectricity in 68PbMg1/3Nb2/3O3/PbTiO3


***Proceedings, Special issues [#t40eaa17]

11~
Jun Kano, Shinya Tsukada, Fan Zhang, Tomoaki Karaki, Masatoshi Adachi, and Seiji Kojima~
Jpn. J. Appl. Phys. 46 (2007) 7148~
Characterization of Dielectric Property of Nanosized (Pb0.7Sr0.3)TiO3 Powders Studied by Raman Scattering

10~
Shinya Tsukada, Yuji Ike, Jun Kano, Tadashi Sekiya, Yoshiro Shimojo, Ruiping Wang, and Seiji Kojima~
Jpn. J. Appl. Phys. 46 (2007) 7151~
Broadband Inelastic Light Scattering Study on Relaxor Ferroelectrics~ 

9~
Y. Matsuda, Y. Fukawa, C. Matsui, Y. Ike, M. Kodama and S. Kojima~
Fluid Phase Equili. 256 (2007) 127-131~
Calorimetric study of the glass transition dynamics in lithium borate glasses over a wide composition range by modulated DSC”

8~
Y. Ike, Y. Seshimo and S. Kojima~
Fluid Phase Equili. 256 (2007) 123-126~
Complex heat capacity of non-Debye process in glassy glucose and fructose

7~
J. Kano, K. Sasanuma, S. Tsukada, S. Kojima, R. wang, K. Hanada, K. Matsusaki and H. Bando~
Ferroelectrics 347 (2007) 55-59~
Piezoelectric (Na0.5K0.5) NbO3-SrTiO3 ceramics in the tetragonal-orthorhombic phase boundary studied by Raman spectroscopy

6~
J.-H. Ko and S. Kojima~
Ferroelectrics 347 (2007) 25-29~
Low-frequency central peaks in relaxor ferroelectric PZN-9%PT single crystals

5~
G. Shabbir, A. H. Qureshi, S. Kojima and D. A. Hall~
Ferroelectrics 346 (2007) 72-76~
Synthesis and dielectric investigations of (1-x) Bi(Mg1/2Zr1/2)3-xPbTiO3 high temperature piezoelectric ceramics

4~
H. Shigematsu, Y. Akishige, S. Gvasaliya, V. Pomjakushin, S. Lushnikov and S. Kojima~
Ferroelectrics 346 (2007) 43-48~
Neutron powder diffraction study of the phase transition in BaTi2O5

3~
S. Tsukada, Y. Ike, J. Kano, T. Sekiya, Y. Shimojo, R. Wang and S. Kojima~
Ferroelectrics 346 (2007) 37-42~
Diffuse phase transition of 0.8Pb(Ni1/3Nb2/3)O3-0.2PbTiO3 single crystals studied by micro-Brillouin scattering

2~
K. Sasanuma, S. Tsukada, J. Kano, S. Kojima, R. wang, K. Hanada, K. Matsusaki and H. Bando~
Ferroelectrics 348 (2007) 508-514~
Investigation on dielectric and piezoelectric properties of (1-x) (Na0.5K0.5)NbO3-xSrTiO3 ceramics

1~
A. V. Svanidza,  I. L. Sashin, S. G. Lushnikov, S. N. Gvasaliya, K. K. Turoverov, I. M. Kuznetsova and S. Kojima~
Ferroelectrics 348 (2007) 154-160~
Inelastic Incoherent Nwutron Scattering in Some Proteins


**2006 [#ha891385]
***Original papers [#s412652a]
5~
J.-H. Ko, D. H. Kim, S. Kojima, W. Chen and Z. G. Ye~
J. Appl. Phys.100 (2006) 066106-1-3~
Dynamical properties of ferroelectric relaxor Pb(Zn1/3Nb2/3)0.91Ti0.045O3 single crystals studied by Brillouin scattering and dielectric spectroscopy

4~
G. Shabbir, S. Kojima and C. Feng~
J. Appl. Phys. 100 (2006) 064107-1-4~
High temperature dc field poling effects on the structural phase transformations of (1&#8722;x)Pb&#8222;Mg1/3Nb2/3O3&#8211;xPbTiO3 single crystal with morphotropic phase boundary composition

3~
Shinya Tsukada, Yuji Ike, and Jun Kano, Tadashi Sekiya, Yoshihito Shimojo, Ruiping Wang and Seiji Kojima~
Appl. Phys. Lett. 89 (2006) 212903-1-3~
Broadband inelastic light scattering of a relaxor ferroelectric 0.71Pb

2~
A. I. Fedoseev, S. G. Lushnikov, S. N. Gvasaliya, and S. Kojima~
JETP 48 (2006) pp.1102-1105~
Acoustic Properties of the Disordered Relaxor Ferroelectric PbSc1/2Ta1/2O3

1~
A. V. Svaniza, S. G. Lushnikov and S. Kojima~
JETP Lett. 84 (2006) pp.551-555~
Anomalous temperature behavior of hypersonic acoustic phonons in a lisozyme crystal~

***Proceedings, Special issues [#f28c39df]
15~
Y. Matsuda, C. Matsui, Y. Ike, M. Kodama and S. Kojima~
AIP Conf. Proc. 832, (2006) pp155-158~
Complex Heat Capacity of Lithium Borate Glasses Studied by Modulated DSC

14~
M. Sato, Y. Ike , J. Kano and S. Kojima~
AIP Conf. Proc. 832, (2006) pp291-294~
Dynamics of Water-Ethanol Mixtures Studied by Light Scattering

13~
Y. Ike、Y. Matsuda, S. Kojima and M. Kodama~
Jpn. J. Appl. Phys. 45, 4474-4478 (2006)~
Brillouin Scattering of Liquid Glass Transition in Lithium Borate Glass

12~
Y. Matsuda, C. Matsui, Y. Ike, M. Kodama and S. Kojima~
J. Thermal Analysis & Calorimetry, 85 (2006) pp.725&#8211;730~
Non-Debye Nature in Thermal Relaxation and Thermal Properties of Lithium Borate Glasses Studied by Modulated DSC

11~
A.I. Fedoseev, A.V. Svanidze, Seiji Kojima and S.G. Lushnikov~
Materials Science and Engineering: A 442（2006）pp.224-228~
Acousto-ionic interaction in sound velocity behavior at a superionic phase transition in Me3H(AO4)2-type crystals

10~
S. Tsukada, Y. Ike, J. Kano and S. Kojima~
Materials Science and Engineering: A 442（2006）pp.79-82~
Brillouin scattering study of glass-forming propylene glycol

9~
Yuji Ike and Seiji Kojima~
Materials Science and Engineering: A 442（2006）pp.383-386~
Brillouin scattering study of polymer dynamics

8~
Anwar Hushur and Seiji Kojima~
Materials Science and Engineering: A 442（2006）pp.35-38~ 
Brillouin scattering study on ferroelectric single crystal Sr2Ta2O7

7~
A. I. Fedoseev , S. G. Lushnikov,, J. -H. Ko, S. Kojima, L. A. Shuvalov~
Mechanical Spectroscopy III Solid State Phenomena, 115 (2006) pp.279-284~
Specific features of Brillouin spectra at a high-temperature phase transition in Cs5H3(SO4)4xnH2O crystals

6~
A. M. Pugachev, S. Kojima, H. Anwar~
Phys. Solid State 48, (2006) pp.1050-1052~ 
“Investigation of the phase transition in lithium tantalate by Brillouin spectroscopy~

5~
A. I. Fedoseev, S. G. Lushnikov, S. N. Gvasaliya, S. Kojima~
Phys. Solid State 48, (2006) pp. 1102-1105~
Acoustic properties of the disordered relaxor ferroelectric PbSc1/2Ta1/2O3

4~
Y. Ike, Y. Matsuda, C. Matsui, M. Kodama and S. Kojima~
Phys. Chem. Glasses &#8211; Euro J. Glass Sci and Tech., B47 (2006) pp.335-338~
Elastic and thermal properties of lithium borate glass system

3~
M. Kodama, A. Ono, S. Kojima, S. A. Feller and M. Affatigato~
Phys. Chem. Glasses &#8211; Euro J. Glass Sci and Tech., B47 (2006) pp.465-470~
Borate anomaly and anharmonicity in sodium borate glasses

2~
D. H. Kim, J.-H. Ko and S. Kojima~
J. Electroceramics 17 (2006) 515-518~
Field induced successive phase transitions of Pb(Zn1/3Nb2/3)O3-xmol%PbTiO3

1~
J.-H. Ko, D. H. Kim and S. Kojima~
J. K. Phys, Soc. 49 (2006) S5346-S539~
Central peak behaviors of lanthanum lead zirconate ferroelectric relaxer ceramics

**2005 [#vbce1d5b]
***Original papers [#r4332223]
5~
G. Shabbir, J.-H. Ko and S. Kojima~
Appl. Phys. Lett. 86 (2005) 012908~
Observation of low-temperature acoustic anomaly in lanthanum lead zirconate titanate

4~
N. V. Surovtsev, A. M. Pugachev, V. K. Malinovsky, A. P. Shebanin, and S. Kojima~
Phys. Rev. B 72, 104303 (2005)~
Low-frequency Raman spectra in LiNbO3: Within and beyond the standard paradigm of ferroelectric dynamics

3~
D. H. Kim, J.-H. Ko, C. D. Feng, and S. Kojima~
J. Appl. Phys. 98, 044106 (2005)~
Micro-Brillouin scattering study of ferroelectric relaxor Pb(Zn1/3Nb2/3)0.91Ti0.09O3 single crystals under the electric field along the [001] direction

2~
D. H. Kim, J.-H. Ko, C. D. Feng, and S. Kojima~
Appl. Phys. Lett. 87, 072908 (2005)~
Microheterogeneity and field-cooling effects on Pb(Zn1/3Nb2/3)0.91Ti0.045O3 single crystals probed by micro-Brillouin scattering

1~
A. Hushur, H, Shigematsu, Y. Akishige, and S. Kojima~
Appl. Phys. Lett. 86, 112903 (2005)~
Order-disorder nature of ferroelectric BaTi2O5

***Proceedings, Special issues [#e9d07458]
17~
Y. Ike and S. Kojima~
J. Kor. Phys. Soc. 46 (2005) pp.90-92~
Brillouin scattering measurement of stoichiometric lithium niobate crystals by using an angular dispersion-type Fabry-Perot interferometer

16~
Z. Ni, A. Hushur, G. Shabbir and S. Kojima~
J. Kor. Phys. Soc. 46 (2005) pp.134-137~
Dielectric and Vibrational Properties of La3+ Substituted Relaxor (Na1/2Bi1/2)TiO3 Ceramics

15~
D. H. Kim, J.-H. Ko and S. Kojima~
J. Kor. Phys. Soc. 46 (2005) pp.131-133~
A Study of Brillouin Scattering on Relaxor Based FerroelectricPb[(Zn1/3Nb2/3)0:91Ti0:09]O3 Crystal

14~
A. Hushur, S. Kojima, T. Shigematsu and Y. Akishige~
J. Kor. Phys. Soc. 46 (2005) pp.86-89~
Raman Scattering Study on New Ferroelectric BaTi2O5 Single Crystals

13~
M. Kodama, S. Kojima, S. Feller and M. Afftigato~
Phys. Chem. Glasses, 46 (2005) pp.190-193~
Borate anomaly, anharmonicity and fragility in lithium borate glass

12~
G. Shabbir and S. Kojima~
J. Kor. Phys. Soc. 46 (2005) pp.128-130~
Low-Temperature Elastic Properties of Lanthanum Lead Zirconate Titanate Relaxor Ferroelectric Ceramics

11~
H. Kitahara, T. Yagi, K. Mano, M. Wada Takeda, S. Kojima and S. Nishizawa~
J. Kor. Phys. Soc. 46, (2005) pp. 82-85~
Dielectric Characteristics of Water Solutions of Ethanol in the Terahertz Region

10~
S. Kojima and J. &#8211;H. Ko~
J. Kor. Phys. Soc. 47, (2005) pp.S271-S275~
Brillouin-Scattering Study of Ammonium Dihydrogen Phosphate by Using a
Nonscanning Angular-Dispersion-Type Fabry-Perot Interferometer

9~
S. Kojima, H. Kitahara, S. Nishizawa, Y. Yang and M. Wada Takeda~
J. Mol. Struc. 744, (2005) pp.243-246~
Terahertz time-domain spectroscopy of low-energy excitations in glasses

8~
N. Zhong, W. Yao, P. Xiang, C. Feng, S. Kojima~
Solid State Commun. 134, (2005) pp.425-429~
Calcium substituting B-site in relaxor ferroelectrics with perovskite structure probed by chemical ordering

7~
A. Hushur, S. Kojima, M. Kodama, B. Whittington, M.Olesiak, M. Affatigato and S. A. Feller~
Jpn. J. Appl. Phys. 44, 6683 (2005)~
Elastic Anomaly of Glass Transitions in Lithium Silicate

6~
S. G. Lushnikov, A. I. Fedoseev, J. &#8211;H. Ko and S. Kojima~
Jpn. J. Appl. Phys. 44, 7156 (2005)~
Orientational Field-Induced Effects in Brillouin Spectra of Lead Magnesium Niobate Crystals

5~
A. Hushur, Y. Akishige and S. Kojima~
Materials Science and Engineering B 120 (2005) pp.45&#8211;49~
Raman scattering study on ferroelectric (Ba0.32Sr0.68)2Nb2O7 ceramics

4~
S. Ike and S. Kojima~
J. Mol. Struc. 744, (2005) pp.521-524~
Brillouin scattering study of liquid&#8211;glass transitions of aminopropanols

3~
A. I. Fedoseev, S. G. Lushnikov,1 J.-H. Ko and S. Kojima~
Ferroelectrics, 320 (2005) pp.75&#8211;78~
Elastic Properties of Disordered Lead Scandotantalate Crystal

2~
G. Shabbir, Y. Akishige, S. Kojima~
Science and Technology of Advanced Materials 6 (2005) pp.656&#8211;659~
Normal-incommensurate phase transition in (Sr1-xBax)2Nb2O7 ferroelectric single crystals

1~
S. Kojima, H. Kitahara, S. Nishizawa and M. Wada Takeda~
Ferroelectrics 314 (2005) pp.1-8~
Complex dispersion relation of phonon-polariton in congruent LiNbO3 studied by THz-TDS


**2004 [#e11cee6e]
***Original papers [#c5b832b7]
7~
J. -H. Ko and S. Kojima~
Phys. Ltt. A 321 (2004) pp.141-146~
Brillouin scattering study on the polypropylene glycol by using a nonscanning Fabry-Perot interferometer

6~
M. Anwar, G. Shabbir, J.-H. Ko and S. Kojima~
J. Phys. D. 37 (2004) pp.1127-1131~
The phase transitions of ferroelectric Sr2Ta2O7 crystals by MDSC, Brillouin and dielectric spectroscopy

5~
J. Oh, J.A. Seo, G. S. Jeen, H. K. Kim, Y. H. Hwang and S. Kojima~
J. Kor. Phys. Soc. 44 (2004) pp.527-529~
Dielectric study of the secondary relaxation in glucose-water mixtures

4~
M. Maczka, J.-H. Ko, D. Wlosewicz, P. E. Tomaszewski, S. Kojima, J. Hanuza and A. Majchrowski~
Solid State Ionics 167 (2004) pp.309-315~
Heat capacity and dielectric studies of ferroelectric superionic conductor RbNbWO6

3~
S. Lushnikov, J. -H. Ko and S. Kojima~
Appl. Phys. Lett. 84 (2004) pp.4798-4800~
Anomalous field-induced effects in the sound velocity in lead magnesium niobate probed by micro-Brillouin scattering

2~
S. Lushnikov, J. -H. Ko and S. Kojima~
JETP Lett. 79 (2004) pp.686-690~
E-T phase diagram of the relaxor ferroelectric lead magnesium niobate in Brillouin scattering spectra

1~
A. Hushur, H. Shigematsu, Y. Akishige and S. Kojima~
Jpn. J. Appl. Phys. 43 (2004) pp.6825-6828~
Observation of relaxation mode in ferroelectric barium dititanate by micro-Brillouin scattering

***Proceedings, Special issues [#ted9ab8a]
20~
Y. Ike and S. Kojima~
Proc. Slow Dynamics in Complex Systems 708 (2004) pp.693-694~
High-resolution Brillouin Scattering Study of Intermediate Glass-forming Materials

19~
G. Shabbir and S. Kojima~
Ceramics Interational 30 (2004) pp.1707-1710~
Breillouin scattering investigations of lead mangnesium niobate-lead titanate single crystal

18~
A. Hushur, Y. Akishige and S. Kojima~
Ceramics Interational 30 (2004) pp.2023-2027~
Soft optical phonon in Ba-doped Sr2Nb2O7 ceramics

17~
G. Shabbir, C. Feng and S. Kojima~
Trans. MRS. Jpn. 29 (2004) pp.1131-1133~
Study of Acoustic Anomalies in Pb(Mg1/3Nb2/3)O3-PbTiO3 Relaxor Single Crystal

16~
D.-H. Kim, J. -H. Ko, and S. Kojima~
Trans. MRS. Jpn. 29 (2004) pp.1147-1149~
Micro-Brillouin Scattering Study of Pb[(Zn1/3Nb2/3)0.91Ti0.09]O3 Relaxor Ferroelectric Crystals

15~
S. Kojima H. Kitahara, S. Nishizawa and M. Wada Takeda~
Proc. SPIE, 5352 (2004) pp.208-215~
Far-infrared phonon-polariton dispersion studied by THz time-domain spectroscopy

14~
S. Kojima, H. Kitahara, S. Nishizawa and M. Wada Takeda~
Proc. Slow Dynamics in Complex Systems 708 (2004) pp.669-670~
Terahertz Time Domain Spectroscopy of Boson Peak

13~
G. Shabbir and S. Kojima~
Ferroelectrics 303 (2004) pp.167-171~
Central Peak in PLZT Relaxors Studied by Micro-Brillouin Scattering

12~
S. Kojima H. Kitahara, S. Nishizawa and M. Wada Takeda~
Ferroelectrics 303 (2004) pp.221-225~
Terahertz Time Domain Spectroscopy of Polariton Dispersion in Ferroelectric Lithium Niobate Crystals

11~
S. Lushnikov, J.-H. Ko and S. Kojima~
Ferroelectrics 303 (2004) pp.203-205~
Brillouin Light Scattering in Complex Perovskite

10~
G. Shabbir and S. Kojima|
Ceramics International 30 (2004) pp.1707-1710~
Brillouin scattering investigations of lead mabnesium niobate-lead titanate single crystal

9~
A. Hushur, Y. Akishige and S. Kojima~
Ceramics International 30 (2004) pp.2023-2027~
Soft optical phonon in Ba-doped Sr2Nb2O7 ceramics

8~
Y. Ike, Furuta, Kuroda, Sugiura and S. Kojima~
Proc. of 18th International Congress on Acoustics, Kyoto 2004.IV, pp.3103-3104.~
Measurements of elastic properties of optical crystals by real time laser light scattering spectroscopy

7~
D.-H. Kim, J. -H. Ko, and S. Kojima~
Proc. of 18th International Congress on Acoustics, Kyoto 2004.II, pp.1623-1626~
Brillouin scattering study of potassium lithium niobate crystals

6~
S. Kojima, H. Kitahara, S. Nishizawa and M. Wada Takeda~
phys. stat. sol. (c) 1 (2004) pp.2674-2677~
Complex disperion relation of phonon-polariton in stoichiometric LiNbO3

5~
A. M. Pugachev, H. Anwar, and S. Kojima~   
Phys. Stat. Sol. (c) 1 (2004) pp.3122-3125~
Order-disorder nature of lithium tantalite probed by broadband Brillouin scattering spectroscopy

4~
M. Kodama, S. Kojima, M. Affigato and S. Feller~
Proc. XXth International Congress on Glass, 2004, Kyoto, P-07-040~
Velocity of sound in lithium borate glass and  cesium borate glass in the low concentration range of modifiers

3~
A. Hushur, M. Affigato, S. Feller, M. Kodama and S. Kojima~
Proc. XXth International Congress on Glass, 2004, Kyoto, P-07-026~
Brillouin scattering study of lithium silicate glass

2~
S. Kojima, H. Kitahara, S. Nishizawa and M. Wada Takeda~
Proc. XXth International Congress on Glass, 2004, Kyoto, O-07-080~
Terahertz time domain spectroscopy of glass science 

1~
Y. Ike and S. Kojima~
Proc. XXth International Congress on Glass, 2004, Kyoto, P-07-027~
Nonscannning Brilloouin scattering spectroscopy application to glassy materials 


**2003 [#zb6bf83b]
***Original papers [#l4de8623]
12~
M. Maczka, J. Hanuza, J. -H. Ko and S. Kojima~
Phys. Rev. B 68 (2003)174101-1~
High-resolution broadband Brillouin scattering study of antiferroelectric phase transition in CsBi(MoO4)2”

11~
G. Shabbir and S. Kojima~
J. Phys. Condens. Matter 15 (2003) pp.7717-7726~
A micro-Brillouin scattering study of the acoustic properties of PLZT relaxor ceramics

10~
M. Maczka, J. Hanuza, J. -H. Ko and S. Kojima~
J. Appl. Phys. 63 (2003) pp.3781-3784~
Brillouin scattering in RbNbWO6

9~
J. -H. Ko, D.-H. Kim and S. Kojima~
Appl. Phys. Lett. 83 (2003) pp.2037-2039~
Elastic response to different electric-field direction in relaxor ferroelectric PZNT single crystals”

8~
G. Shabbir and S. Kojima~
Europhysics Lett. 63 (2003) pp.388-393~
Brillouin scattering study of La-modified lead zirconate titanate relaxor

7~
G. Shabbir, J. H. Ko, S. Kojima and Q. Yin~
Appl. Phys. Lett. 82 (2003) pp.4694-4698~
Acoustic properties of PLZT relaxor ferroelectric ceramics studied by Brillouin scattering

6~
J. H. Ko, S. Kojima and S. G. Lushnikov~
Appl. Phys. Lett. 82 (2003) pp.4128-4130~
Different dynamic behaviors of PMT and BMT single crystals studied by micro-Brillouin scattering and dielectric spectroscopy

5~
G. Shabbir and S. Kojima~
J. Phys. D: Appl. Phys. 36 (2003) pp.1036-1039~
Acoustic and thermal properties of strontium pyroniobate crystals

4~
M. Maczka, A. G. Souza Filho, P. T. C. Freire, J.M. Filho, S. Kojima, J. Hanuza and A. Majchrowski~
J. Raman Spec. 34 (2003) pp.199-204~
Pressure- and temperature dependent Raman studies of KNbW2O9 hexagonal tungsten bronze~

3~
J. H. Ko, D. H. Kim, S. Kojima, J. H. Kim and W. K. Choo~
Jpn. J. Appl. Phys. 42 (2003) pp.3076-3079~
Brillouin scattering study on polycrystalline relaxor ferroelectrics~

2~
H. J. Joo, SW. H. Lee, J. H. No, S. Kojima, C. C. Chou, H. K. Kim and M. S. Jang~
Jpn. J. Appl. Phys. 42 (2003) pp.1292-1296~
Raman Study of Effects of Hydrogen Gas Annealing on PbTiO3 Crystals

1~
S. Kojima, N. Tsumura, M. Wada Takeda, and S. Nishizawa~
Phys. Rev. B67 (2003) 035102~
Far-infrared Phonon-Polariton Dispersion Probed by Terahertz Time Domain Spectroscopy"

***Proceedings, Special issues [#z6a1ca0b]
12~
S. Kojima, H. Kitahara, S. Nishizawa and M. Wada Takeda~
Jpn. J. Appl. Phys. 42 (2003) pp.6238-6241~
Polariton Dispesion of LiTaO3 Probed by Terahertz Time Domain Spectroscopy

11~
J. -H. Ko and S. Kojima~
J. Korean Phys. Soc. 42 (2003) pp.S1298-S1301~
Polarization rotation in the relaxor ferroelectric PZNT studied by micro-Brillouin scattering

10~
M. Wada Takeda, S. Nishizawa and S. Kojima~
J. Korean Phys. Soc. 42 (2003) pp.S1220-S1223~
Terahertz time domain spectroscopic study of ferroelectrics

9~
J. -H. Ko, M. Anwar and S. Kojima~
J. Korean Phys. Soc. 42 (2003) pp.S1084-S1087~
Elastic properties of bismuth layer-structured perovskite single crystals studied by Brillouin scattering

8~
G. Shabbir, M. Anwar, J. -H. Ko and S. Kojima~
J. Korean Phys. Soc. 42 (2003) pp.S1294-S1297~
Dynanmical properties of Sr2Nb2O7 studied by micro- Brillouin scattering and modulated differential scanning calorimetry

7~
S. Kojima, N. Tsumura, H. Kitahara, M. Wada Takeda and S. Nisizawa~
Ferroelectrics 284 (2003) pp. 21-29~
Far-infrared ferroelectric soft phonon-polariton probed by THz time domain spectroscopy”

6~
A. I. Fedoseev, S. G. Lushnikov, S. N. Gvasaliya，J. H. Ko, S. Kojima and L. A. Shuvalov~
Ferroelectrics 285 (2003) pp. 119-132~
Dynamical properties of partially disordered crystals of Cs2H3(SO4)4xH2O

5~
J. H. Ko, D. H. Kim, S. G. Lushnikov, R. S. Katiyar and S. Kojima~
Ferroelectrics 286 (2003) pp. 61-71~
Dielectric anomalies of BNSBT single crystals with tungsten bronze structure 

4~
S. Kojima, H. Anwar, J. H. Ko, M.Kodama, S. A. Feller, M. Affatigato, R. C. Nieuwendaal, W. J. Clarida and R. Leelasagar~
Phys. Chem. Glasses, 44 (2003) pp.88-90~
Brillouin and Raman spectroscopic studies of caesium lithium borate glasses

3~
S. Kojima, S. Nishizawa and M. Wada Takeda~
J. Mol. Struc. 651-653 (2003) pp.285－288~
Complex dielectric constants of Boson peaks of PMMA probed by Terahertz Time Domain Spectroscopy

2~
J. -H. Ko, N. Takada, M. Ueda and S. Kojima~
J. Mol. Struc. 651-653 (2003) pp.159-163~
Study of liquid-glass transition by real time Brillouin scattering

1~
D. H. Kim, J. H. Ko, S. Kojima, T. H. Kim and J. H. Ro
J. Korean Phys. Soc. 42 (2003) pp.S1080-1083~
Brillouin scattering study of potassium lithium niobate single crystals

**2002 [#e7a6d820]
***Original papers [#m3b09b29]
11~
V. N. Novikov, N. V. Sourouvtsev, J. Wierdersich, S. Adichtchev, S. Kojima and E. Rossler~
Europhysics Lett. 57 (2002) pp.838-844~
On the origin of quasi-elastic light scattering in glasses

10~
G. Matsui and S. Kojima~
Phys. Lett. A 293 (2002) pp.156-160~
Bifurcation of translational and rotational non-Gausian behaviors in two dimensional liquid

9~
S. Lushnikov, F. M. Jiang and S. Kojima~
Solid State Comm. 122 (2002) pp.129-133~
Central peaks in the vibrational spectrum of the relaxor ferroelectric lead scandium tantalate

8~
M. Maczka, J. Hanuza, N. Sidrov and S. Kojima~
Materials Science 20 (2002) pp.105-110~   
The study of thermal disordering of the KSc(WO4)2 crystal structure by Raman spectroscopy

7~
J. H. Ko and S. Kojima~
Jpn. J. Appl. Phys. 41 (2002) pp.3206－3209~
Fast relaxation dynamics of monohydric alcohols revealed by Brillouin scattering

6~
J. H. Ko and S. Kojima~
Appl. Phys. Lett. 81 (2002) pp.1077-1079~
Electric-field effect of Pb[Zn(1/3)Nb(2/3)(0.91)(Ti(0.09)) by micro-Brilouin scattering

5~
J. -H. Ko, S. Kojima, S. Lushnikov, R. S. Katiyar, T. -H. Kim and J.-H Ro~
J. Appl. Phys. 92 (2002) pp.1536-1543~
Low-temperature transverse dielectric anomalies of uniaxial tungsten bronze crystals

4~
J. H. Ko, H. Anwar and S. Kojima~
Appl. Phys. Lett. 81 (2002) pp.4043-4045~
Elastic anomaly and central peak in a ferroelectrioc phase transition of SrBi2Ta2O3

3~
F. Jiang and S. Kojima~
Phys. Rev. B 66 (2002) pp.184301-1-6~
Central peaks and Brillouin scattering in uniaxial relaxor single crystals of Sr0.61Ba0.39Nb2O6

2~
M. Anwar, J. &#8211;H. Ko, S. Kojima, S. S. Lee and M. S. Jiang~
J. Korean Phys. Soc. 41 (2002) pp.763-768~
Raman scattering study of A- and B-site Substitutins in Ferroelectric Bi4Ti3O12

1~
J. H. Ko and S. Kojima~
Rev. Sci. Instr. 73 (2002) pp.4390-4392~
Nonscanning Brillouin spectroscopy applied to solid materials

***Proceedings, Special issues [#l0386356]
11~
F. Jiang and S. Kojima~
Ferroelectrics  266 (2002) pp.355-362~
Micro-Brillouin scattering and central peaks of 0.91PZN-0.09PT crystals

10~
S. Kojima, N. Tsumura, M. Wada Takeda, and S. Nishizawa~
Analytical Science 17 (2002) pp.i681-i684~
Far-infrared Phonon-Polariton Dispersion of Bismuth Titanate by THz Time Domain Spectroscopy

9~
J. H. Ko and S. Kojima~
Ferroelectrics, 270, (2002) pp.209-214~
Dielectric and pyroelectric properties of strontium barium niobate at low temperatures

8~
S. Kojima, N. Tsumura, M. Wada Takeda, and S. Nishizawa~
Ferroelectrics, 272 (2002) pp.99-104~
Terahertz Time Domain Spectroscopy of Phonon-Polariton in Ferroelectrics Bismuth Titanate

7~
J. -H. Ko and S. Kojima~
J. Non-Crys. Solids, 307-310 (2002) pp.154-160~
Fast relaxation dynamics of ethanol revealed by Brillouin scattering

6~
S. Kojima, N. Tsumura, H. Kitahara, M. Wada Takeda and S. Nishizawa~
Proc. 18th Inter. Conf. Raman Spectroscopy, Budapest, 2002. Wiley, pp.213-214~
Terahertz Time Domain Spectroscopy of Ordinary and Extraordinaly Phonon-Polariton in Lithium Niobate

5~
J. -H. Ko and S. Kojima~
J. Kor. Phys. Soc. 41 (2002) pp.241-246~
Brillouin Scattering Study of Strontium Barium Niobate at Low Temperature

4~
S. Kojima, N. Tsumura, H. Kitahara, M. Wada Takeda, and S. Nishizawa~
Jpn. J. Appl. Phys. 41 (2002) pp.7033-7037~
Terahertz Time Domain Spectroscopy of Phonon-Polaritons in Ferroelectric Lithium Niobate Crystals

3~
J. H. Ko and S. Kojima~
Jpn. J. Appl. Phys. 41 (2002) pp.7038-7041~
Linear and nonlinear dielectric responses of Sr0.61Ba0.39Nb2O6 single crystal

2~
S. Nishizawa, N. Tsumura, H. Kitahara, M. Wada Takeda and S. Kojima~
Phys. Med. Bio. 47 (2002) pp.3771-3776~
New Application of Teraheltz Time-Domain Spectrometry (THz-TDS) to
the Phonon-Polariton Observation on Ferroelectric Crystals

1~
M. Kodama and S. Kojima~
J. Thermal Analysis & Calorimetriy, 69 (2002) pp.961-970~
Anharmonicity and fragilty in lithium borate glass


**2001 [#o194cc87]
***Original papers [#f838b724]
9~
M. Maczka, J. Hanuza, F. Jiang and S. Kojima~
Phys. Rev. B 63 (2001)  pp.144101-144111~
Micro-Brillouin study of ferroelastic phase transition in KSc(MoO4)2

8~
O. Y. Jeon, H. K. Kim, T. H. Kim, J. H. Ro, M. Cha and S. Kojima~
J. Korean Phys. Soc. 38 (2001) pp. 138-141~
Nonlinear Optical Properties of Congruent and Li-Compensated LiNbO3 Crystals

7~M. Maczka, J. Hanuza, S. Kojima  and Jn der Maas~
J. Solid State Chem. 158 (2001) pp.334-342~
Vibrational Study of Phase Transition in KIn(WO4)2

6~
J. H. Ko, F. Jiang, S. Kojima, T. A. Shaplygina and S. G. Lushnikov~
J. Phys. : Condens. Matter 13 (2001) pp.5449-5462~
Linear and nonlinear dielectric susceptibilities of the disordered lesad scandium tantalate

5~
J. H.Ko, Z. Chao, S. Itoh and S. Kojima~
Jpn. J. Appl. Phys. 40 (2001) pp.3575-3578~
Brillouin Measurement of Glass-Forming Ethanol by Angular Dispersion-Type Fabry-Perot Interferometer

4~
M. Maczka, J. Hanuza, F. Jiang and S. Kojima~
J. Raman Spec. 32 (2001) pp.287-291~
Vibrational Spectra of KNbW2O9 Hexagonal Tungsten Bronze

3~V. N. Novikov, N. V. Sourouvtsev and S. Kojima~
J. Chem. Phys. 115 (2001) pp.5278-5283~
On spectral shape of low-frequency excess scattering in Raman spectra of glasses

2~
J. H.Ko, and S. Kojima~
J. Korean Phys. Soc. 39 (2001) pp.702-707~
Brillouin scattering study of primary alcohols using angular dispersion-type Fabry-Perot interferometer

1~
F. Jiang, S. Kojima, C. Zhao and C. Feng~
Appl. Phys. Lett. 79 (2001) pp.3938-3990~
Chemical ordering in lanthanum-doped lead mangnesium niobate relaxor ferroelectrics probed by A1g Raman mode
 
***Proceedings, Special issues [#l4d25d35]
6~
M. Maczka, F. Jiang, S. Kojima and J. Hanuza~
J. Mol. Structure  563-564 (2001) pp.365-369~
Brillouin Scatteing Study of KAl(MoO4)2 and NaAl(MoO4)2

5~
S. Kojima and F. Jiang~
AIP Proc., Proc. Wiliamsburg, 582 (2001) pp.61-67~
Broadband Brillouin scattering of some ralxor ferroelectrics

4~
F. Jiang, J. H. Ko, S. Kojima, T. A. Shaplygina and S. G. Lushnikov~
Jpn. J. Appl. Phys. 41 (2001) pp.5823-5827~
Dynamical Properties of PST probed by micro-Brillouin scattering

3~
M. Takashige, S. Hamazaki, Y. Takaha. F. Shimizu, T. Yamaguchi, M. S. Jang  and  S. Kojima~
Jpn. J. Appl. Phys. 41 (2001) pp.5816-5818~
Study of Crystallization from Amorphous Bi4Ti3O12 by Dielectric Spectroscopy

2~
S. Kojima, A. Hushur, F. Jiang, S. Hamazaki, M. Takashige, M. S. Jang and S. Shimada~
J. Non-Crys. Solids 293-295 (2001) pp.250-254~
Crystallization of Amorphous Bismuth Titanate

1~
M. Takashige, S. Hamazaki, Y. Takaha. F. Shimizu, T. Yamaguchi, M. S. Jang  and S. Kojima~
Ferroelectrics. 264 (2001) pp.185-190~
Study of Crystallization from Amorphous State of Ferroelectric Oxides by Scanning Probe Microscopy" 


**2000 [#r9233bb6]
***Original papers [#nb35cbd2]
6~
M. Maczka, S. Kojima, J. Hanuza and A. Pieyraszko~
J. Phys. : Condens. Matter 12 (2000) pp.1691-1704~
Discovery of phase transitions in Cs6In0.5W10.5O36

5~
M. Maczka, S. Kojima and J. Hanuza~
J. Phys. Chem. Solids 61 (2000) pp.735-742~
Temperature-dependent Raman scattering spectra of CsBi(MoO4)2

4~
F. Jiang and S. Kojima~
Appl. Phys. Lett. 77 (2000) pp.1271-1273~
Micro-heterogeneity and relaxation in 0.65PMN-0.35PT relaxor single crystals

3~
F. Jiang, S. Kojima, C. Zhao and C. Feng~
J. Appl. Phys. 88 (2000) pp.3608-3612~
Raman scattering on the B-site order controlled by A-site substitution in relaxor Perovskite ferroelectrics

2~
F. Jiang and S. Kojima~
Phys. Rev. B 62 (2000) pp.8572-8575~
Relaxation mode in 0.65PMN-0.35PT relaxor single crystals studied by micro-Brillouin scattering

1~
S. Kojima, V. Novikov and M. Kodama~
J. Chem. Phys. 113 (2000) pp.6344-6350~
Fast relaxation, boson peak and anharmonicity in lithium borate glass

***Proceedings, Special issues [#w346b1ea]
10~
S. Kojima~
Ferroelectrics 239 (2000) pp.55-62~
Raman Spectroscopy of Bismuth Layer Structured Ferroelctrics

9~
A. Onodera, K. Yoshio, C. C. Myint, M. Tanaka, K. Hironaka and S. Kojima~
Ferroelectrics 239 (2000) pp.159-166~
Thermal Behavior in Ferroelectric SrBi2Ta2O9 Thin Films

8~
I. S. Park and S. Kojima~
Thermochimica Acta 352-353 (2000) pp.147-152~
Glass transition and Structural Relaxation of Intermediate Liquids by MDSC and Dielectric Spectroscopy

7~
C. Zhai, S. Itho and S. Kojima~
Proc. of ICORS, Beijing, 2000, pp.394-395~
Brillouin Scattering Measurement of Liquid Using Nonscanning Fabry-Perot Interferometer

6~
M. Anwar, M. S. Jang and S. Kojima~
Proc. of ICORS, Beijing, 2000, pp.444-445~
Raman scattering study of ferroelectric lanthunum substituted bismuth titanate

5~
M.Ahart, S.Kojima, M. Takagi, M.Maeda and I Suzuki~
Proc. of ICORS, Beijing, 2000, pp.490-491~
Temperature dependence of the high frequency Raman phonon relate to the α-β and β-γ Phase Transitions of KIO3 crystals

4~
S. Kojima, F. Jiang and M. S. Jang~
Proc. of ICORS, Beijing, 2000, pp.392-394~
Brilluin sctattering study of the ferroelastic phase transition in lead phosphate

3~
M. Takashige, S. Hamazaki, Y. Takaha. F. Shimizu, T. Yamaguchi, M. S. Jang and S. Kojima~
Jpn. J. Appl. Phys. 39 (2000) pp.5716-5718~
Observation of Crystallization Process from Amorphous Bi4Ti3O12 Prepared by Rapid Quenching Method

2~
A. Onodera, T.Kubo, K.Yoshio, S. Kojima, H. Yamashita and T. Takama~
Jpn. J. Appl. Phys. 39 (2000) pp.5711-5715~
Crystal Structure of High-temperature Paraelectric Phase in Bi-Layered Perovskite Sr0.85Bi2.1Ta2O9

1~
F. Jiang and S. Kojima
Jpn. J. Appl. Phys. 39 (2000) pp.5705-5710~
Study of Three Different Relaxor Ferroelectrics by High Resolution Micro-Brillouin Scattering
論文/英語論文 の変更点
