長谷川 巧Takumi Hasegawa

Last Updated :2020/05/22

所属・職名
大学院先進理工系科学研究科 総科:先進理工(自然探究領域) 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. 2020年, 教養教育, 1ターム, 物理学実験法・同実験I[2工四]
  2. 2020年, 教養教育, 3ターム, 物理学実験法・同実験I[1工二]
  3. 2020年, 教養教育, 2ターム, 物理学実験法・同実験II[2工四]
  4. 2020年, 教養教育, 4ターム, 物理学実験法・同実験II[1工二]
  5. 2020年, 学部専門, セメスター(前期), 物理学基礎実験
  6. 2020年, 学部専門, セメスター(前期), 物理学基礎実験法
  7. 2020年, 学部専門, 1ターム, 物理科学概論
  8. 2020年, 学部専門, 3ターム, 物質科学実験A
  9. 2020年, 学部専門, 3ターム, 物質科学実験法A
  10. 2020年, 学部専門, 2ターム, 物質科学実験D
  11. 2020年, 学部専門, 4ターム, 物性物理学I
  12. 2020年, 修士課程・博士課程前期, 2ターム, 複雑系基礎論
  13. 2020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. Raman spectroscopy on ternary transition metal chalcogenide Rb2Ni3S4, Journal of Alloys and Compounds, 364巻, 1-2号, pp. 199-207, 20040211
  2. 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
  3. Gigantic Photoresponse in 1/4-Filled-Band Organic Salt (EDO-TTF)2PF6, Science, 307巻, pp. 86-89, 20050107
  4. First-Principles Study of Structural Phase Transitions in Hexagonal KNiCl3, Journal of the Korean Physical Society, 46巻, 1号, pp. 59-62, 20050101
  5. Elastic properties of distorted triangular lattice KNiCl3-family compounds, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 75巻, 9号, 200609
  6. Raman scattering of Type-I clathrate compounds., Physica B, 383巻, pp. 134-136, 20060401
  7. Raman scattering study of the guest ion motion in caged crystals., Proceedings ICT’06, pp. 33-35, 20061201
  8. 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
  9. Raman scattering investigation of skutterudite compounds, Physica B, 383巻, 1号, pp. 128-129, 20061201
  10. Lattice dynamics calculation of infrared active modes of cuprate superconductors, PHYSICA B-CONDENSED MATTER, 383巻, 1号, pp. 86-88, 20060815
  11. Raman scattering investigation of skutterudite compounds, PHYSICA B-CONDENSED MATTER, 383巻, 1号, pp. 128-129, 20060815
  12. Raman scattering of type-I clathrate compounds, PHYSICA B-CONDENSED MATTER, 383巻, 1号, pp. 134-136, 20060815
  13. 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
  14. Raman scattering study of the skutterudite compounds, Journal of Magnetism and Magnetic Materials, 310巻, 2号, pp. 948-950, 20070401
  15. 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
  16. Raman scattering on La3Pd20X6 (X = Si, Ge), Journal of Magnetism and Magnetic Materials, 310巻, 2号, pp. 984-986, 20070401
  17. Raman scattering study of filled skutterudite compounds, Journal of Physics: Conference Series, 92巻, pp. 012123, 20071201
  18. Raman scattering on KOs2O6, Journal of Physics: Conference Series, 9巻, pp. 012124, 20071201
  19. 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
  20. Low-lying optical modes in filled skutterudites using inelastic x-ray scattering techniques, Journal of Physics: Conference Series, 92巻, pp. 012171, 20071201
  21. Raman scattering study of the skutterudite compounds, JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 310巻, 2号, pp. 948-950, 200703
  22. 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
  23. Raman scattering on La3Pd20X6 (X = Si, Ge), JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 310巻, 2号, pp. 984-986, 200703
  24. Neutron Diffraction Study of Structural Intermediate Phase IV in TlCoCl3, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 77巻, 12号, 200812
  25. Raman Scattering Study of Guest Ion Motion in Cage Compounds, Journal of Physical Society of Japan, 77巻, SUPPLMENT号, pp. 142-147, 20080301
  26. First-priciples calculation of lattice dynamics of skutterudite compounds, 日本物理学会, 77巻, SUPPLEMENT号, pp. 248-250, 20080301
  27. Raman Scattering Study of Filled Skuttterudite Compounds  , 日本物理学会, 77巻, SUPPLEMENT号, pp. 251-253, 20080301
  28. Raman scattering of type-I clathrate compounds, 日本物理学会, 77巻, SUPPLEMENT号, pp. 254-256, 20080301
  29. Direct Observation of Low-Energy Sm Phonon in SmRu4P12, 日本物理学会, 77巻, 3号, pp. 033601/4 PAGES, 20080301
  30. Raman scattering of KOs2O6, 米国物理学会, 77巻, 6号, pp. 064303/ 6 PAGES, 20080315
  31. 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
  32. Off-center rattling and anisotropic expansion of type-I clathrates studied by Raman scattering, PHYSICAL REVIEW LETTERS, 100巻, 16号, 20080425
  33. 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
  34. Optical conductivity of rattling phonons in type-I clathrate Ba8Ga16Ge30, PHYSICAL REVIEW B, 79巻, 21号, 200906
  35. Raman scattering investigation of beta-pyrochlore osmium oxides, AOs2O6 (A=K, Rb, and Cs), Journal of Physics: Conference Series, 150巻, pp. 052067, 20090401
  36. Crystal Field Excitations of Filled Skutterudite PrRu4P12 by Raman Scattering, Journal of Physics: Conference Series, 150巻, pp. 042147, 20090401
  37. Valence dependence of interatomic interactions in RB6, Journal of Physics: Conference Series, 176巻, pp. 0120131, 20090701
  38. Raman scattering of rare earth hexaborides, Journal of Physics: Conference Series, 176巻, pp. 012032, 20090701
  39. 149Sm nuclear resonant inelastic scattering of SmB6, Journal of Physics: Conference Series, 176巻, pp. 012033, 20090701
  40. 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
  41. 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
  42. Raman scattering study in iridium pyrochlore oxides, Journal of Physics: Conference Series, 200巻, pp. 012054, 20100201
  43. Off-center rattling modes and glasslike thermal conductivity in the type-I clathrate Ba8Ga16Sn30, Physical Review B, 81巻, 20号, pp. 205207, 20100501
  44. Raman scattering study of nano-particle BaTiO3, Chinese Journal of Physics, 49巻, 1号, pp. 49-55, 20110201
  45. Raman scattering of hydrogen storage material LiNH2, Chinese Journal of Physics, 49巻, 1号, pp. 294-300, 20110201
  46. Structural transition of RhSb3 under high pressures, Chinese Journal of Physics, 49巻, 1号, pp. 323-330, 20110201
  47. Raman spectral analysis of metal-insulator transitions in skutterudite compound PrRu4P12, Chinese Journal of Physics, 49巻, 1号, pp. 471-479, 20110201
  48. Low temperature phase of YbPd investigated by Raman scattering, Journal of Physics: Conference Series, 273巻, 1号, pp. 012030/1-012030/4, 20110201
  49. Raman Scattering of YB6, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 80巻, 201107
  50. Raman scattering investigation on YbPd, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 80巻, 201107
  51. Raman scattering study of lattice dynamics in caged compounds, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 80巻, 201107
  52. The anharmonic vibration of Li in lithium amide, APPLIED PHYSICS LETTERS, 100巻, 15号, 20120409
  53. Tetrahedral Magnetic Order and the Metal-Insulator Transition in the Pyrochlore Lattice of Cd2Os2O7, PHYSICAL REVIEW LETTERS, 108巻, 24号, 20120613
  54. Raman Scattering Study of Hydrogen Storage Material LiNH2, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 81巻, 9号, 201209
  55. Renormalized Motion of Dysprosium Atoms Filling Boron Cages of DyB6, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 81巻, 11号, 201211
  56. 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
  57. Origins of Phase Transitions in Valence Fluctuating YbPd, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 82巻, 8号, 201308
  58. First-principles calculations of lattice vibrations on LaT2Zn20 (T = Ru and Ir), Journal of Physics: Conference Series, 391巻, pp. 012016, 20130101
  59. Raman scattering spectra of LaRu2Al10 and CeRu2Al10, Journal of Physics: Conference Series, 391巻, pp. 012050, 20130101
  60. Crystal Electric Field Study in Pr(Os1-xRux)4Sb12 by Raman Scattering, JPS Conf. Proc., 3巻, pp. 015040/1-015040/6, 20140616
  61. 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
  62. Atomic Dynamics and Structural Transitions in Caged Compounds RRu2Zn20 (R=La and Pr), JPS Conf. Proc., 3巻, pp. 011068/1-011068/5, 20140616
  63. Inelastic X-ray Scattering of Valence Fluctuating YbPd, JPS Conf. Proc., 3巻, pp. 011037/1-011037/5, 20140616
  64. 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
  65. Valence-lattice interaction on YbPd, Journal of Physics: Conference Series, 592巻, pp. 012061/1-012061/6, 20150325
  66. 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
  67. Low-energy optical phonon modes in the caged compound LaRu2Zn20, PHYSICAL REVIEW B, 93巻, 6号, 20160209
  68. Guest Ion Motion in Cage Structure Crystals Investigated by Raman Scattering, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 77巻, pp. 142-147, 2008
  69. Raman Scattering of Type-I Clathrate Compounds, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 77巻, pp. 254-256, 2008
  70. 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
  71. 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
  72. 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
  73. 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
  74. 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
  75. Effect of rattling motion without cage structure on lattice thermal conductivity in LaOBiS2-xSex, APPLIED PHYSICS LETTERS, 112巻, 2号, 20180108
  76. Retreat from Stress: Rattling in a Planar Coordination, ADVANCED MATERIALS, 30巻, 13号, 20180327
  77. High-pressure Raman study on the superconducting pyrochlore oxide Cd2Re2O7, PHYSICA B-CONDENSED MATTER, 536巻, pp. 600-603, 20180501
  78. Antiferroelectric distortion with anomalous phonon softening in the excitonic insulator Ta2NiSe5, PHYSICAL REVIEW B, 98巻, 4号, 20180730

招待講演、口頭・ポスター発表等

  1. 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91月, 通常, 日本語, 日本物理学会, 金沢大学角間キャンパス