長谷川 巧Takumi Hasegawa

Last Updated :2023/02/02

所属・職名
大学院先進理工系科学研究科 准教授
メールアドレス
hasehiroshima-u.ac.jp

基本情報

学位

  • 博士(理学) (東京工業大学)
  • 修士(理学) (東京工業大学)

研究分野

  • 数物系科学 / 物理学 / 物性Ⅱ

研究キーワード

  • ラットリング
  • 電子格子相互作用
  • 非調和効果

教育活動

授業担当

  1. 2022年, 教養教育, 1ターム, 物理学実験法・同実験I[2理物]
  2. 2022年, 教養教育, 3ターム, 物理学実験法・同実験I[1工二]
  3. 2022年, 教養教育, 2ターム, 物理学実験法・同実験II[2理物]
  4. 2022年, 教養教育, 4ターム, 物理学実験法・同実験II[1工二]
  5. 2022年, 教養教育, 1ターム, 教養ゼミ
  6. 2022年, 学部専門, セメスター(前期), 物理学基礎実験
  7. 2022年, 学部専門, セメスター(前期), 物理学基礎実験法
  8. 2022年, 学部専門, 1ターム, 物理科学概論
  9. 2022年, 学部専門, 3ターム, 物質科学実験A
  10. 2022年, 学部専門, 3ターム, 物質科学実験法A
  11. 2022年, 学部専門, 2ターム, 物質科学実験D
  12. 2022年, 学部専門, 2ターム, 物質科学実験法D
  13. 2022年, 学部専門, 4ターム, 物性物理学I
  14. 2022年, 学部専門, 2ターム, Frontiers of Material Science (物質科学の最前線)
  15. 2022年, 修士課程・博士課程前期, 2ターム, 複雑系基礎論
  16. 2022年, 修士課程・博士課程前期, 3ターム, 相関系物質論

研究活動

学術論文(★は代表的な論文)

  1. Inelastic X-ray Scattering Investigation of Proper Ferroelastic Transition in LiNH4C4H4O6 center dot H2O, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 85巻, 1号, 2016
  2. Origins of Phase Transitions in Valence Fluctuating YbPd, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 82巻, 8号, 2013
  3. Atomic dynamics of low-lying rare-earth guest modes in heavy fermion filled skutterudites ROs4Sb12 (R = light rare-earth), PHYSICAL REVIEW B, 86巻, 19号, 2012
  4. Large diamagnetism and low-lying optical phonon modes in Pt-Cd gamma-phase, JOURNAL OF ALLOYS AND COMPOUNDS, 901巻, 2022
  5. Nearly Room-Temperature Ferromagnetism in a Pressure-Induced Correlated Metallic State of the van der Waals Insulator CrGeTe3, PHYSICAL REVIEW LETTERS, 127巻, 21号, 2021
  6. Renormalized Motion of Dysprosium Atoms Filling Boron Cages of DyB6, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 81巻, 11号, 2012
  7. Transverse-type Lattice Modulation in LaO0.5F0.5BiS2: Possible Charge Density Wave Formation, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 90巻, 10号, 2021
  8. Retreat from Stress: Rattling in a Planar Coordination, ADVANCED MATERIALS, 30巻, 13号, 2018
  9. High-pressure Raman study on the superconducting pyrochlore oxide Cd2Re2O7, PHYSICA B-CONDENSED MATTER, 536巻, pp. 600-603, 2018
  10. Spin-gap formation due to spin-Peierls instability in pi-orbital-ordered NaO2, PHYSICAL REVIEW B, 104巻, 14号, 2021
  11. Antiferroelectric distortion with anomalous phonon softening in the excitonic insulator Ta2NiSe5, PHYSICAL REVIEW B, 98巻, 4号, 2018
  12. Soft-phonon driven hexagonal-orthorhombic phase transition in BaVS3, PHYSICAL REVIEW B, 99巻, 14号, 2019
  13. Successive Continuous Phase Transitions in Spin-Orbit Coupled Metal Cd2Re2O7, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 90巻, 6号, 2021
  14. First-Order Metal-Semiconductor Transition Triggered by Rattling Transition in Tetrahedrite Cu12Sb4S13: Cu-Nuclear Magnetic Resonance Studies, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 88巻, 5号, 2019
  15. Intercalated Cu+ ion dynamics in the two-dimensional layered compound Cu0.33TiSe2, PHYSICAL REVIEW B, 101巻, 9号, 2020
  16. Study of Phonon Dispersion of Iridium Oxide Ca5Ir3O12 with Strong Spin-Orbit Interaction, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 89巻, 5号, 2020
  17. First Observation of Superlattice Reflections in the Hidden Order at 105 K of Spin-Orbit Coupled Iridium Oxide Ca5Ir3O12, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 90巻, 6号, 2021
  18. Raman Scattering Investigation of Structural Transition in Ca5Ir3O12, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 89巻, 5号, 2020
  19. Regular-triangle trimer and charge order preserving the Anderson condition in the pyrochlore structure of CsW2O6, NATURE COMMUNICATIONS, 11巻, 1号, 2020
  20. Inelastic X-ray Scattering Study of the Cage-structured Compound PrRh2Zn20, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 90巻, 2号, 2021
  21. Lattice instability coupled with valence degrees of freedom in valence fluctuation compound YbPd, PHYSICAL REVIEW B, 102巻, 24号, 2020
  22. First-principles calculation of lattice dynamics of skutterudite compounds, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 77巻, pp. 248-250, 2008
  23. Raman Scattering Study of Filled Skutterudite Compounds, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 77巻, pp. 251-253, 2008
  24. Elastic properties of distorted triangular lattice KNiCl3-family compounds, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 75巻, 9号, 2006
  25. Raman scattering in KOs2O6, PHYSICAL REVIEW B, 77巻, 6号, 2008
  26. Direct observation of low-energy Sm phonon in SmRu4P12, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 77巻, 3号, 2008
  27. Neutron Diffraction Study of Structural Intermediate Phase IV in TlCoCl3, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 77巻, 12号, 2008
  28. Off-Center Guest Vibrations and Their Effect on Lattice Thermal Conductivity in n- and p-Type beta-Ba8Ga16Sn30, JOURNAL OF ELECTRONIC MATERIALS, 38巻, 7号, pp. 1516-1520, 2009
  29. Lattice dynamical study of alkaline atom vibrations with anharmonic interactions in beta-pyrochlore oxides, PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 470巻, pp. S695-S696, 2010
  30. Raman Scattering Study of Nano-Particle BaTiO3, CHINESE JOURNAL OF PHYSICS, 49巻, 1号, pp. 49-55, 2011
  31. Raman scattering of hydrogen storage material LiNH2, CHINESE JOURNAL OF PHYSICS, 49巻, 1号, pp. 294-300, 2011
  32. Structural Transition of RhSb3 under High Pressures, CHINESE JOURNAL OF PHYSICS, 49巻, 1号, pp. 323-330, 2011
  33. Raman Scattering Study of Hydrogen Storage Material LiNH2, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 81巻, 9号, 2012
  34. Raman spectroscopy on ternary transition metal chalcogenide Rb2Ni3S4, Journal of Alloys and Compounds, 364巻, 1-2号, pp. 199-207, 20040211
  35. Ultrafast photo-induced metal-insulator transition in 1/4 filled organic crystal (EDO-TTF)2PF6, Journal of Physics: Conference Series, 21巻, pp. 130-135, 20050301
  36. Gigantic Photoresponse in 1/4-Filled-Band Organic Salt (EDO-TTF)2PF6, Science, 307巻, pp. 86-89, 20050107
  37. First-Principles Study of Structural Phase Transitions in Hexagonal KNiCl3, Journal of the Korean Physical Society, 46巻, 1号, pp. 59-62, 20050101
  38. Elastic properties of distorted triangular lattice KNiCl3-family compounds, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 75巻, 9号, 200609
  39. Raman scattering of Type-I clathrate compounds., Physica B, 383巻, pp. 134-136, 20060401
  40. Raman scattering study of the guest ion motion in caged crystals., Proceedings ICT’06, pp. 33-35, 20061201
  41. Dynamical properties of guest ions in the type-I clathrate compounds X8Ga16Ge30 (X=Eu, Sr, Ba)investigated by Raman scattering, Phys. Rev. B, 74巻, pp. 174303 (1-5), 20061101
  42. Raman scattering investigation of skutterudite compounds, Physica B, 383巻, 1号, pp. 128-129, 20061201
  43. Lattice dynamics calculation of infrared active modes of cuprate superconductors, PHYSICA B-CONDENSED MATTER, 383巻, 1号, pp. 86-88, 20060815
  44. Raman scattering investigation of skutterudite compounds, PHYSICA B-CONDENSED MATTER, 383巻, 1号, pp. 128-129, 20060815
  45. Raman scattering of type-I clathrate compounds, PHYSICA B-CONDENSED MATTER, 383巻, 1号, pp. 134-136, 20060815
  46. Dynamical properties of guest ions in the type-I clathrate compounds X8Ga16Ge30 (X=Eu,Sr,Ba) investigated by Raman scattering, PHYSICAL REVIEW B, 74巻, 17号, 200611
  47. Raman scattering study of the skutterudite compounds, Journal of Magnetism and Magnetic Materials, 310巻, 2号, pp. 948-950, 20070401
  48. Raman scattering study of type-I clathrate compounds: A8Ga16Ge30 (A = Eu, Sr, Ba), Journal of Magnetism and Magnetic Materials, 310巻, 2号, pp. 954-956, 20070401
  49. Raman scattering on La3Pd20X6 (X = Si, Ge), Journal of Magnetism and Magnetic Materials, 310巻, 2号, pp. 984-986, 20070401
  50. Raman scattering study of filled skutterudite compounds, Journal of Physics: Conference Series, 92巻, pp. 012123, 20071201
  51. Raman scattering on KOs2O6, Journal of Physics: Conference Series, 9巻, pp. 012124, 20071201
  52. Raman scattering of type-I clathrate compounds: A8Ga16Ge30(A = Eu, Sr, Ba) and Sr8Ga16Si30-xGex, Journal of Physics: Conference Series, 92巻, pp. 012171, 20071201
  53. Low-lying optical modes in filled skutterudites using inelastic x-ray scattering techniques, Journal of Physics: Conference Series, 92巻, pp. 012171, 20071201
  54. Raman scattering study of the skutterudite compounds, JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 310巻, 2号, pp. 948-950, 200703
  55. Raman scattering study of type-I clathrate compounds: A(8)Ga(16)Ge(30) (A = Eu, Sr, Ba), JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 310巻, 2号, pp. 954-956, 200703
  56. Raman scattering on La3Pd20X6 (X = Si, Ge), JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 310巻, 2号, pp. 984-986, 200703
  57. Neutron Diffraction Study of Structural Intermediate Phase IV in TlCoCl3, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 77巻, 12号, 200812
  58. Raman Scattering Study of Guest Ion Motion in Cage Compounds, Journal of Physical Society of Japan, 77巻, SUPPLMENT号, pp. 142-147, 20080301
  59. First-priciples calculation of lattice dynamics of skutterudite compounds, 日本物理学会, 77巻, SUPPLEMENT号, pp. 248-250, 20080301
  60. Raman Scattering Study of Filled Skuttterudite Compounds  , 日本物理学会, 77巻, SUPPLEMENT号, pp. 251-253, 20080301
  61. Raman scattering of type-I clathrate compounds, 日本物理学会, 77巻, SUPPLEMENT号, pp. 254-256, 20080301
  62. Direct Observation of Low-Energy Sm Phonon in SmRu4P12, 日本物理学会, 77巻, 3号, pp. 033601/4 PAGES, 20080301
  63. Raman scattering of KOs2O6, 米国物理学会, 77巻, 6号, pp. 064303/ 6 PAGES, 20080315
  64. Anomalous phonon properties in the silicide superconductor CaAlSi and SrAlSi, 米国物理学会, 78巻, 18号, pp. 184303/10 PAGES, 20081101
  65. Off-center rattling and anisotropic expansion of type-I clathrates studied by Raman scattering, PHYSICAL REVIEW LETTERS, 100巻, 16号, 20080425
  66. Off-Center Guest Vibrations and Their Effect on Lattice Thermal Conductivity in n- and p-Type beta-Ba8Ga16Sn30, JOURNAL OF ELECTRONIC MATERIALS, 38巻, 7号, pp. 1516-1520, 200907
  67. Optical conductivity of rattling phonons in type-I clathrate Ba8Ga16Ge30, PHYSICAL REVIEW B, 79巻, 21号, 200906
  68. Raman scattering investigation of beta-pyrochlore osmium oxides, AOs2O6 (A=K, Rb, and Cs), Journal of Physics: Conference Series, 150巻, pp. 052067, 20090401
  69. Crystal Field Excitations of Filled Skutterudite PrRu4P12 by Raman Scattering, Journal of Physics: Conference Series, 150巻, pp. 042147, 20090401
  70. Valence dependence of interatomic interactions in RB6, Journal of Physics: Conference Series, 176巻, pp. 0120131, 20090701
  71. Raman scattering of rare earth hexaborides, Journal of Physics: Conference Series, 176巻, pp. 012032, 20090701
  72. 149Sm nuclear resonant inelastic scattering of SmB6, Journal of Physics: Conference Series, 176巻, pp. 012033, 20090701
  73. Off-center rattling and cage vibration of the carrier-tuned type-I clathrate Ba8Ga16Ge30 studied by Raman scattering, PHYSICAL REVIEW B, 82巻, 13号, 20101005
  74. Lattice dynamical study of alkaline atom vibrations with anharmonic interactions in beta-pyrochlore oxides, PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 470巻, pp. S695-S696, 201012
  75. Raman scattering study in iridium pyrochlore oxides, Journal of Physics: Conference Series, 200巻, pp. 012054, 20100201
  76. Off-center rattling modes and glasslike thermal conductivity in the type-I clathrate Ba8Ga16Sn30, Physical Review B, 81巻, 20号, pp. 205207, 20100501
  77. Raman scattering study of nano-particle BaTiO3, Chinese Journal of Physics, 49巻, 1号, pp. 49-55, 20110201
  78. Raman scattering of hydrogen storage material LiNH2, Chinese Journal of Physics, 49巻, 1号, pp. 294-300, 20110201
  79. Structural transition of RhSb3 under high pressures, Chinese Journal of Physics, 49巻, 1号, pp. 323-330, 20110201
  80. Raman spectral analysis of metal-insulator transitions in skutterudite compound PrRu4P12, Chinese Journal of Physics, 49巻, 1号, pp. 471-479, 20110201
  81. Low temperature phase of YbPd investigated by Raman scattering, Journal of Physics: Conference Series, 273巻, 1号, pp. 012030/1-012030/4, 20110201
  82. Raman Scattering of YB6, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 80巻, 201107
  83. Raman scattering investigation on YbPd, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 80巻, 201107
  84. Raman scattering study of lattice dynamics in caged compounds, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 80巻, 201107
  85. The anharmonic vibration of Li in lithium amide, APPLIED PHYSICS LETTERS, 100巻, 15号, 20120409
  86. Tetrahedral Magnetic Order and the Metal-Insulator Transition in the Pyrochlore Lattice of Cd2Os2O7, PHYSICAL REVIEW LETTERS, 108巻, 24号, 20120613
  87. Raman Scattering Study of Hydrogen Storage Material LiNH2, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 81巻, 9号, 201209
  88. Renormalized Motion of Dysprosium Atoms Filling Boron Cages of DyB6, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 81巻, 11号, 201211
  89. Atomic dynamics of low-lying rare-earth guest modes in heavy fermion filled skutterudites ROs4Sb12 (R = light rare-earth), PHYSICAL REVIEW B, 86巻, 19号, 20121112
  90. Origins of Phase Transitions in Valence Fluctuating YbPd, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 82巻, 8号, 201308
  91. First-principles calculations of lattice vibrations on LaT2Zn20 (T = Ru and Ir), Journal of Physics: Conference Series, 391巻, pp. 012016, 20130101
  92. Raman scattering spectra of LaRu2Al10 and CeRu2Al10, Journal of Physics: Conference Series, 391巻, pp. 012050, 20130101
  93. Crystal Electric Field Study in Pr(Os1-xRux)4Sb12 by Raman Scattering, JPS Conf. Proc., 3巻, pp. 015040/1-015040/6, 20140616
  94. Measurement of Crystal Field Excitations in NdT2Al10 (T=Ru and Os) by Raman Scattering, JPS Conf. Proc., 3巻, pp. 011070/1-011070/6, 20140616
  95. Atomic Dynamics and Structural Transitions in Caged Compounds RRu2Zn20 (R=La and Pr), JPS Conf. Proc., 3巻, pp. 011068/1-011068/5, 20140616
  96. Inelastic X-ray Scattering of Valence Fluctuating YbPd, JPS Conf. Proc., 3巻, pp. 011037/1-011037/5, 20140616
  97. Interplay between low-energy optical phonon modes and structural transition in PrT2Zn20 (T=Ru and Ir), Journal of Physics: Conference Series, 592巻, pp. 012024/1-012024/6, 20150325
  98. Valence-lattice interaction on YbPd, Journal of Physics: Conference Series, 592巻, pp. 012061/1-012061/6, 20150325
  99. Inelastic X-ray Scattering Investigation of Proper Ferroelastic Transition in LiNH4C4H4O6 center dot H2O, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 85巻, 1号, 20160115
  100. Low-energy optical phonon modes in the caged compound LaRu2Zn20, PHYSICAL REVIEW B, 93巻, 6号, 20160209
  101. Guest Ion Motion in Cage Structure Crystals Investigated by Raman Scattering, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 77巻, pp. 142-147, 2008
  102. Raman Scattering of Type-I Clathrate Compounds, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 77巻, pp. 254-256, 2008
  103. 15aXD-6 遍歴電子磁性体 (CoS_2, MnSi, Sc_3In) のラマン散乱(遍歴磁性, f 電子系磁性, 遷移金属合金, 実験技術開発, 領域 3), 日本物理学会講演概要集, 59巻, 2号, 20040825
  104. 27pXQ-4 (EDO-TTF)_2PF_6におけるラマン散乱(光誘起相転移,領域5(光物性)), 日本物理学会講演概要集, 60巻, 1号, 20050304
  105. 22pWF-6 非中心ラットリング系I型クラスレートBa_8Ga_<16>Sn_<30>のラマン散乱(22pWF クラスレート,領域7(分子性固体・有機導体)), 日本物理学会講演概要集, 63巻, 2号, 20080825
  106. 23pTH-8 クラスレート化合物Sr_8Ga_<16>Si_<30-x>Ge_xのラマン散乱II(クラスレート・新物質,領域7,分子性固体・有機導体), 日本物理学会講演概要集, 62巻, 2号, 20070821
  107. 28aPS-70 非弾性X線散乱によるRT_2Zn_<20>(R=La,Pr,T=Ru,Ir)のフォノン分散測定(28aPS 領域8ポスターセッション(重い電子系・籠状物質・酸化物など),領域8(強相関系)), 日本物理学会講演概要集, 69巻, 1号, 20140305
  108. Effect of rattling motion without cage structure on lattice thermal conductivity in LaOBiS2-xSex, APPLIED PHYSICS LETTERS, 112巻, 2号, 20180108
  109. Retreat from Stress: Rattling in a Planar Coordination, ADVANCED MATERIALS, 30巻, 13号, 20180327
  110. High-pressure Raman study on the superconducting pyrochlore oxide Cd2Re2O7, PHYSICA B-CONDENSED MATTER, 536巻, pp. 600-603, 20180501
  111. Antiferroelectric distortion with anomalous phonon softening in the excitonic insulator Ta2NiSe5, PHYSICAL REVIEW B, 98巻, 4号, 20180730
  112. Soft-phonon driven hexagonal-orthorhombic phase transition in BaVS3, PHYSICAL REVIEW B, 99巻, 14号, 20190423
  113. First-Order Metal-Semiconductor Transition Triggered by Rattling Transition in Tetrahedrite Cu12Sb4S13: Cu-Nuclear Magnetic Resonance Studies, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 88巻, 5号, 20190515
  114. Intercalated Cu+ ion dynamics in the two-dimensional layered compound Cu0.33TiSe2, PHYSICAL REVIEW B, 101巻, 9号, 20200331
  115. Study of Phonon Dispersion of Iridium Oxide Ca5Ir3O12 with Strong Spin-Orbit Interaction, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 89巻, 5号, 20200515
  116. Raman Scattering Investigation of Structural Transition in Ca5Ir3O12, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 89巻, 5号, 20200515
  117. Coexistence of odd-parity and even-parity order parameters in the multipole order phase of the spin-orbit coupled metal Cd2Re2O7, PHYSICAL REVIEW B, 101巻, 20号, 20200519
  118. Regular-triangle trimer and charge order preserving the Anderson condition in the pyrochlore structure of CsW2O6, NATURE COMMUNICATIONS, 11巻, 1号, 20200619
  119. Anomalous changes of electric quadrupole order at low temperatures in the spin-orbit coupled metal Cd2Re2O7, PHYSICAL REVIEW B, 102巻, 15号, 20201021
  120. Lattice instability coupled with valence degrees of freedom in valence fluctuation compound YbPd, PHYSICAL REVIEW B, 102巻, 24号, 20201230
  121. Inelastic X-ray Scattering Study of the Cage-structured Compound PrRh2Zn20, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 90巻, 2号, 20210215
  122. First Observation of Superlattice Reflections in the Hidden Order at 105 K of Spin-Orbit Coupled Iridium Oxide Ca5Ir3O12, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 90巻, 6号, 20210615
  123. Successive Continuous Phase Transitions in Spin-Orbit Coupled Metal Cd2Re2O7, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 90巻, 6号, 20210615
  124. Zn-Substitution Effect on Metal-Semiconductor Transition in Tetrahedrite Cu12Sb4S13, JPS Conference Proceedings, 29巻, pp. 013008, 20190925
  125. Precursor of Metal-Semiconductor Transition in Tetrahedrite Probed by Cu-NMR, JPS Conference Proceedings, 30巻, pp. 011075, 20190917

招待講演、口頭・ポスター発表等

  1. Anomalous low-energy excitations on LaB6 investigated by Raman scattering measurements, Takumi Hasegawa, Norio Ogita, Fumitoshi Iga, and Masayuki Udagawa, 20th International Conference on Magnetism, 2015年07月07日, 通常, 英語, Barcelona, Spain
  2. Valence-lattice interaction on YbPd, Takumi Hasegawa, Norio Ogita, Akihiro Mitsuda, Masaki Sugishima, Hirofumi Wada, Satoshi Tsutsui, Alfred Q. R. Baron, Masayuki Udagawa, Strongly Correlated Electron Systems conference SCES2014, 2014年07月07日, 通常, 英語, Grenoble, France
  3. Bond strength in ammonia borane and its related materials, Takumi Hasegawa, Tessui Nakagawa, Troy A. Semelsberger, Benjamin L. Davis, Rico E. Del Sesto, Anthony K. Burrell, Ogita Norio, and Masayuki Udagawa, 第10回日韓強誘電体会議, 2014年08月17日, 通常, 英語, 広島市
  4. Raman scattering investigation on ammonia borane and amidoborane compounds, Takumi Hasegawa, Tessui Nakagawa, Troy A. Semelsberger, Benjamin L. Davis, Rico E. Del Sesto, Anthony K. Burrell, Ogita Norio, and Masayuki Udagawa, The International Meeting on Advanced Material Science for Hydrogen, 2014年08月25日, 通常, 英語, 沖縄県
  5. アンモニアボラン及びアミドボラン化合物のラマン散乱, 長谷川 巧, 中川 鉄水,Troy A. Semelsberger,Benjamin L. Davis, Rico E. Del Sesto,Anthony K. Buerrell,荻田 典男1,宇田川 眞行, 第九回 水素若手研究会, 2014年08月28日, 通常, 日本語
  6. Cu12Sb4S13におけるフォノン分散の第一原理計算, 長谷川巧, 末國晃一郎,田中博己,高畠敏郎,荻田典男,宇田川眞行, 日本物理学会2015年秋季大会, 2015年09月16日, 通常, 日本語, 大阪府吹田市関西大学 千里山キャンパス
  7. 第一原理計算によるLaRu4Sb12とLaOs4Sb12の非調和性の検証, 長谷川巧, 荻田典男,宇田川眞行, 日本物理学会第70回年次大会, 2015年03月21日, 通常, 日本語, 東京都新宿区早稲田大学早稲田キャンパス
  8. LaB6における励起波長依存ラマンスペクトル, 長谷川巧, 荻田典男,宇田川眞行, 日本物理学会2014年秋季大会, 2014年09月07日, 通常, 日本語, 愛知県春日井市 中部大学春日井キャンパス
  9. YbPdの価数・フォノン間相互作用と構造相転移, 長谷川巧, 荻田典男,光田暁弘,杉島正樹,和田裕文,筒井智嗣,A. Q. R. Baron,宇田川眞行, 日本物理学会第69回年次大会, 2014年03月27日, 通常, 日本語, 神奈川県平塚市 東海大学湘南キャンパス
  10. LaT2Zn20(T=Ru,Ir)の格子振動の第一原理計算, 長谷川巧, 荻田典男,宇田川眞行, 日本物理学会2013年秋季大会, 2013年09月25日, 通常, 日本語, 徳島県徳島市 徳島大学常三島キャンパス
  11. MnPのラマン散乱, 長谷川巧, 荻田典男,宇田川眞行,矢野真一郎,高坂勇輔,秋光純, 日本物理学会第68回年次大会, 2013年03月26日, 通常, 日本語, 東広島市 広島大学
  12. Measurement of Crystal Field Excitations in NdT2Al10 (T = Ru and Os) by Raman Scattering, T. Hasegawa, K. Nagano, N. Ogita, M. Udagawa, H. Tanida, D. Tanaka, M.Sera, T. Nishioka, M. Matsumura, The International Conference on Strongly Correlated Electron Systems, SCES2013, 2013年08月05日, 通常, 英語, 東京
  13. カゴ状物質のラマン散乱, 長谷川巧, ISSP短期研究会「スクッテルダイト化合物及び関連物質を舞台とした 強相関電子系物理の新展開」, 2014年10月10日, 招待, 日本語, 東京大学物性研究所
  14. ラマン散乱から見たCd2Os2O7の金属絶縁体転移, 長谷川巧, CMRCミニ研究会「5d遷移金属化合物における金属-絶縁体転移」, 2014年06月11日, 招待, 日本語, KEK物質構造科学研究所、つくば市
  15. 第一原理計算を用いたテトラヘドライトCu12X4S13(X=As,Sb)の低温構造と非調和相互作用, 長谷川 巧, 荻田 典男、宇田川 眞行, 日本物理学会 2016年 秋季大会, 2016年09月13日, 通常, 日本語, 日本物理学会, 金沢大学角間キャンパス
  16. テトラヘドライトCu12X4S13(X=Sb, As)の非調和効果の解析, 長谷川 巧, 国際ワークショップ ECMP2018, 2018年03月05日, 招待, 英語, 木村昭夫, 広島県東広島市
  17. Cd2Re2O7のオーダーパラメーターに関する光学測定結果レビュー, 長谷川 巧, 第1回ETQ研究会「多極子秩序と超伝導」, 2018年08月08日, 招待, 日本語, 北海道大学、北海道札幌市、日本
  18. Raman scattering investigation on geometrically frustrated iridate Ca5Ir3O12, T. Hasegawa, N. Ogita, W. Yoshida, K. Nakamura, and K. Matsuhira, Emergence Condensed-Matter Physics 2019, 2019年03月19日, 通常, 英語, Higashi-Hiroshima, Hiroshima, Japan
  19. Raman scattering investigation on geometrically frustrated iridate Ca5Ir3O12, T. Hasegawa, W. Yoshida, K. Nakamura, N. Ogita, K. Matsuhira, Frontiers of Correlated Electron Sciences 2019, 2019年05月29日, 通常, 英語, Tokyo University, Tokyo, Japan
  20. BiS2系物質の局所構造歪, 長谷川 巧, 荻田典男、大村瑠美、東中隆二、松田達磨、青木勇二, 第6回CRESTチーム内ミーティング「ラットリングとローンペアの融合的活用による熱電材料の開発」, 2019年05月08日, 通常, 日本語
  21. ラマン散乱による幾何学的フラストレート系イリジウム酸化物Ca5Ir3O12の構造変化解析, 長谷川 巧, 荻田典男、吉田航、中村和磨、松平和之, 新学術領域「J-Physics:多極子伝導系の物理」 地域研究会 – 北九州, 2019年06月07日, 通常, 日本語

受賞

  1. 2105年01月, JPSJ Papers of Editors' Choice, The Physical Society of Japan, First Observation of Superlattice Reflections in the Hidden Order at 105 K of Spin-Orbit Coupled Iridium Oxide Ca5Ir3O12

外部資金

競争的資金等の採択状況

  1. 科学研究費助成事業(基盤研究(C)), パイロクロア型イリジウム酸化物における金属絶縁体転移の機構解明, 2011年, 2013年
  2. 科学研究費助成事業(若手研究(B)), β-パイロクロア酸化物におけるアルカリ金属元素の振動の電子状態への影響の解明, 2009年, 2010年