TAKAHIRO ONIMARU

Last Updated :2021/02/02

Affiliations, Positions
Graduate School of Advanced Science and Engineering, Professor
E-mail
onimaruhiroshima-u.ac.jp
Other Contact Details
1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima, Japan
TEL : (+81)82-424-7027 FAX : (+81)82-424-7029

Basic Information

Major Professional Backgrounds

  • 2005/04/01, 2006/09/30, Japan Science and Technology Agency, Researcher

Educational Backgrounds

  • The University of Tokyo, Graduate School, Division of Science, Department of Physics, Japan, 2002/04, 2005/03
  • Tohoku University, Graduate School, Division of Natural Science, Department of Physics, Japan, 1997/04, 1999/03
  • Science University of Tokyo, Faculty of Science, Department of Physics, Japan, 1993/04, 1997/03

Academic Degrees

  • Doctor of Science, The University of Tokyo
  • Master of Science, TOHOKU UNIVERSITY

Educational Activity

  • 【Bachelor Degree Program】School of Science : Physics
  • 【Master's Program】Graduate School of Advanced Science and Engineering : Division of Advanced Science and Engineering : Quantum Matter Program
  • 【Doctoral Program】Graduate School of Advanced Science and Engineering : Division of Advanced Science and Engineering : Quantum Matter Program

In Charge of Primary Major Programs

  • Physics

Research Fields

  • Mathematical and physical sciences;Physics;Condensed matter physics II

Research Keywords

  • Low temperature
  • Magnetism

Affiliated Academic Societies

  • Physical Society of Japan, 1999, 2007

Educational Activity

Course in Charge

  1. 2020, Undergraduate Education, Second Semester, Electromagnetism II
  2. 2020, Undergraduate Education, 4Term, Advanced Physics
  3. 2020, Undergraduate Education, First Semester, Solid State Physics II
  4. 2020, Undergraduate Education, First Semester, Special Study for Graduation A
  5. 2020, Undergraduate Education, Second Semester, Special Study for Graduation B
  6. 2020, Graduate Education (Master's Program) , First Semester, Seminar on Sciences of Matter
  7. 2020, Graduate Education (Master's Program) , Second Semester, Seminar on Sciences of Matter
  8. 2020, Graduate Education (Master's Program) , 3Term, Exercises in Basic Sciences of Matter B
  9. 2020, Graduate Education (Master's Program) , First Semester, Seminar on Basic Sciences of Matter A
  10. 2020, Graduate Education (Master's Program) , Second Semester, Seminar on Basic Sciences of Matter B
  11. 2020, Graduate Education (Master's Program) , Academic Year, Academic Presentation in Basic Sciences of Matter
  12. 2020, Graduate Education (Master's Program) , 1Term, Exercises in Basic Sciences of Matter A
  13. 2020, Graduate Education (Master's Program) , 2Term, Exercises in Basic Sciences of Matter A
  14. 2020, Graduate Education (Master's Program) , 4Term, Exercises in Basic Sciences of Matter B
  15. 2020, Graduate Education (Master's Program) , 2Term, Magnetism A
  16. 2020, Graduate Education (Master's Program) , Academic Year, Advanced Study in Quantum Matter
  17. 2020, Graduate Education (Doctoral Program) , Academic Year, Advanced Study in Quantum Matter

Research Activities

Academic Papers

  1. Fragile superheavy Fermi liquid in YbCo2Zn20, PHYSICAL REVIEW B, 101(24), 20200601
  2. Magnetic Properties of Rare-Earth Sulfides RCuS2 (R = Dy, Ho, Er, Tm, and Yb), JPS Conf. Proc., 30, 011167/1-011167/6, 20200319
  3. Effects of Magnetic Field on the Nonmagnetic Doublet Ground State in PrMgNi4, JPS Conf. Proc., 30, 011160/1-011160/6, 20200319
  4. Crystal electric field response in elastic modulus without rattling effect in the cage compound NdCo2Zn20, JPS Conf. Proc., 30, 011162/1-011162/5, 20200319
  5. Collapse of Ferroquadrupolar Order and Emergence of Non-Fermi Liquid Behavior in La1-xPrxTi2Al20, JPS Conf. Proc., 30, 011159/1-011159/5, 20200319
  6. Substitution Effect on the Metamagnetic Crossover in the Super-Heavy Fermion Compound YbCo2Zn20, JPS Conf. Proc., 30, 011121/1-011121/4, 20200319
  7. Logarithmic Elastic Response in the Dilute non-Kramers System Y1-xPrxIr2Zn20, JPS Conf. Proc., 29, 015002/1-015002/9, 20200213
  8. Magnetic Properties of a Diluted Nd System Y1-xNdxCo2Zn20 for x = 0.20 with a Gamma6 Doublet Ground State, JPS Conf. Proc., 29, 015006/1-015006/6, 20200213
  9. Non-Kramers Gamma3 doublet ground state in a diluted Pr system Y1-xPrxCo2Zn20, JPS Conf. Proc., 29, 015001/1-015001/6, 20200213
  10. Observation of the 4f ground-state symmetry in strongly correlated cubic Pr compounds probed by linearly polarized 3d core-level photoemission spectroscopy, J. Electron Spectros. Relat. Phenom., 238, 146885/1-146885/3, 202001
  11. Pressure-Induced Collapse of the Guest Eu Off-Centering in Type-I Clathrate Eu8Ga16Ge30, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 88(11), 20191115
  12. Hindered Quadrupole Order in PrMgNi4 with a Nonmagnetic Doublet Ground State, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 88(8), 20190815
  13. Evidence for the Single-Site Quadrupolar Kondo Effect in the Dilute Non-Kramers System Y1-xPrxIr2Zn20, PHYSICAL REVIEW LETTERS, 123(6), 20190806
  14. Evidence for antiferromagnetic-type ordering of f-Eelectron multipoles in PrIr2Zn20, PHYSICAL REVIEW B, 95(15), 2017
  15. Linear Dichroism in Angle-Resolved Core-Level Photoemission Spectra Reflecting 4f Ground-State Symmetry of Strongly Correlated Cubic Pr Compounds, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 86(12), 2017
  16. Competing Magnetic Interactions in the Kramers Doublet System NdIr2Zn20, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 86(5), 2017
  17. Anisotropic B-T Phase Diagram of Non-Kramers System PrRh2Zn20, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 86(4), 2017
  18. Structural, Magnetic, and Superconducting Properties of Caged Compounds ROs2Zn20 ( R = La, Ce, Pr, and Nd), JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 86(3), 2017
  19. Exotic Quadrupolar Phenomena in Non-Kramers Doublet Systems - The Cases of PrT2Zn20 (T = Ir, Rh) and PrT2Al20 (T = V, Ti), JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 85(8), 2016
  20. Exotic Ground State and Elastic Softening under Pulsed Magnetic Fields in PrTr2Zn20 (Tr = Rh, Ir), JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 85(4), 2016
  21. Thermoelectric properties of Mg3Sb2-xBix single crystals grown by Bridgman method, MATERIALS RESEARCH EXPRESS, 2(5), 2015
  22. Anisotropic Thermopower of the Antiferromagnetic Kondo Semiconductor CeOs2Al10 Doped with 5d Electrons and Holes, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 84(8), 2015
  23. Effect of La Substitution in PrIr2Zn20 on the Superconductivity and Antiferro-Quadrupole Order, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 84(6), 2015
  24. Electrical properties of Ba3C60 collapsed under high-pressure and high-temperature conditions, CARBON, 73, 125-131, 2014
  25. Simultaneous Pressure-Induced Magnetic and Valence Transitions in Type-I Clathrate Eu8Ga16Ge30, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 83(1), 2014
  26. Weak Ferromagnetism below 41K and Structural Transition at 395K in CeIr3B2 Single Crystal, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 82(10), 2013
  27. Evidence of a rattling transition in the caged compounds LaRu2Zn20 and LaIr2Zn20: La-139 NMR studies, JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 63(3), 650-653, 2013
  28. Anisotropic c-f hybridization in the Kondo semiconductor CeFe2Al10, JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 63(3), 508-511, 2013
  29. Antiferroquadrupolar ordering and magnetic-field-induced phase transition in the cage compound PrRh2Zn20, PHYSICAL REVIEW B, 87(20), 2013
  30. Well-Defined Crystal Field Splitting Schemes and Non-Kramers Doublet Ground States of f Electrons in PrT2Zn20 (T = Ir, Rh, and Ru), JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 82(4), 2013
  31. Superconductivity of metal nitride chloride beta-MNCl (M = Zr, Hf) with rare-earth metal RE (RE = Eu, Yb) doped by intercalation, SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 26(4), 2013
  32. NMR Evidence of Freezing of Rattling Motion in LaIr2Zn20 and LaRu2Zn20, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 81(2), 2012
  33. Antiferro-Quadrupolar Ordering at the Lowest Temperature and Anisotropic Magnetic Field-Temperature Phase Diagram in the Cage Compound PrIr2Zn20, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 80(9), 2011
  34. High-Pressure Synthesis and Superconductivity of a New Binary Lanthanum Germanide LaGe3 with Triangular Ge-3 Cluster Units, INORGANIC CHEMISTRY, 50(9), 3901-3906, 2011
  35. New Phase Diagram of PrPb3 in [100] Magnetic Filed Direction, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 79(9), 2010
  36. Superconductivity and Structural Phase Transitions in Caged Compounds RT2Zn20 (R = La, Pr, T = Ru, Ir), JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 79(3), 2010
  37. Magnetocrystalline Anisotropy and Crystal Fields in the Weak-Ferromagnet Ce4Ni3Pb4, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 78(2), 2009
  38. Thermoelectric and Magnetic Properties of a Narrow-Gap Semiconductor FeGa3, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 78(1), 2009
  39. Giant uniaxial anisotropy in the magnetic and transport properties of CePd5Al2, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 77(7), 2008
  40. Inelastic neutron scattering study on 4f-electron multipole system PrTr2X20 (Tr: transition metal, X: Al and Zn), PHYSICA B-CONDENSED MATTER, 551, 37-40, 2018
  41. Magnetic field effects on the specific heat of a diluted Pr system Y1-xPrxIr2Zn20, AIP ADVANCES, 8(10), 2018
  42. Impurity quadrupole Kondo ground state in a dilute Pr system Y1-xPrxIr2Zn20, PHYSICA B-CONDENSED MATTER, 536, 40-42, 2018
  43. Effects of Ga and Cd Substitutions for Zn in PrIr2Zn20 on the Quadrupole-Driven Non-Fermi Liquid Behaviors, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 88(5), 20190515
  44. Antiferromagnetic Order of NdT2Zn20(T = Co and Rh) with the Kramers Gamma(6) Doublet Ground State, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 88(4), 20190415
  45. Highly anisotropic strain dependencies in PrIr2Zn20, PHYSICAL REVIEW B, 99(8), 20190222
  46. Sinusoidally modulated magnetic structure of Kramers local moments in CePd5Al2, JOURNAL OF PHYSICS-CONDENSED MATTER, 31(12), 20190327
  47. Inelastic neutron scattering study on 4f-electron multipole system PrTr2X20 (Tr: transition metal, X: Al and Zn), PHYSICA B-CONDENSED MATTER, 551, 37-40, 20181215
  48. Metamagnetic crossover in the quasikagome Ising Kondo-lattice compound CeIrSn, PHYSICAL REVIEW B, 98(15), 20181029
  49. Magnetic field effects on the specific heat of a diluted Pr system Y1-xPrxIr2Zn20, AIP ADVANCES, 8(10), 201810
  50. Single-Site Non-Fermi-Liquid Behaviors in a Diluted 4f(2) System Y1-xPrxIr2Zn20, PHYSICAL REVIEW LETTERS, 121(7), 20180817
  51. Antiferro-multipole Ordered State Associated with 4f 2 Configuration in PrIr2Zn20, 27(4), 144-147, 20171110
  52. Effect of Zn-site substitution with Ga on non-Fermi liquid behavior in PrIr2Zn20, PHYSICA B-CONDENSED MATTER, 536, 34-36, 20180501
  53. Impurity quadrupole Kondo ground state in a dilute Pr system Y1-xPrxIr2Zn20, PHYSICA B-CONDENSED MATTER, 536, 40-42, 20180501
  54. Ferromagnetism in a hexagonal PrRh3 with 4f(2) configuration, PHYSICA B-CONDENSED MATTER, 536, 439-441, 20180501
  55. Structural and magnetic properties of a novel ternary intermetallic compound CePd3Sn2, JOURNAL OF ALLOYS AND COMPOUNDS, 739, 518-521, 20180330
  56. Linear Dichroism in Angle-Resolved Core-Level Photoemission Spectra Reflecting 4f Ground-State Symmetry of Strongly Correlated Cubic Pr Compounds, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 86(12), 20171215
  57. Quantum criticality and development of antiferromagnetic order in the quasikagome Kondo lattice CeRh1-xPdxSn, PHYSICAL REVIEW B, 96(4), 20170726
  58. Anisotropic B-T Phase Diagram of Non-Kramers System PrRh2Zn20, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 86(4), 20170415
  59. Competing Magnetic Interactions in the Kramers Doublet System NdIr2Zn20, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 86(5), 20170515
  60. Structural, Magnetic, and Superconducting Properties of Caged Compounds ROs2Zn20 ( R = La, Ce, Pr, and Nd), JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 86(3), 20170315
  61. ★, Exotic Quadrupolar Phenomena in Non-Kramers Doublet Systems - The Cases of PrT2Zn20 (T = Ir, Rh) and PrT2Al20 (T = V, Ti), JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 85(8), 20160815
  62. ★, Quadrupole-driven non-Fermi-liquid and magnetic-field-induced heavy fermion states in a non-Kramers doublet system, PHYSICAL REVIEW B, 94(7), 20160816
  63. Ferromagnetic transition in a caged compound NdOs2Zn20, Physics Procedia, 75, 511-515, 20151201
  64. Common Anomalies of Transport Properties in PrTr2Zn20 (Tr=Ir, Rh) with Non-Kramers Doublet Ground State, Physics Procedia, 75, 529-536, 20151201
  65. Effect of Ga Substitution on the Gamma3 Doublet Ground State in PrIr2Zn20, J. Phys.: Conf. Ser., 683, 012011-1-012011-7, 20160205
  66. Non-Fermi Liquid Properties in a Cubic Pr-Based Compound PrPb3 under Magnetic Fields, J. Phys.: Conf. Ser., 683, 012031-1-012031-6, 20160205
  67. Physical properties of new cerium palladium phosphide with C6Cr23-type structure, RESULTS IN PHYSICS, 4, 137-141, 2014
  68. Exotic Ground State and Elastic Softening under Pulsed Magnetic Fields in PrTr2Zn20 (Tr = Rh, Ir), JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 85(4), 20160415
  69. 25pPSA-62 Neutron scattering study of single-crystalline Ce^<11>B_2C_2, Meeting abstracts of the Physical Society of Japan, 54(2), 19990903
  70. Antiferromagnetic Structure with the Uniaxial Anisotropy in the Tetragonal LaB_2C_2 Type Compound,NdB_2C_2 : Condensed Matter: Electronic Properties, etc., Journal of the Physical Society of Japan, 69(8), 2623-2628, 20000815
  71. Low-energy optical phonon modes in the caged compound LaRu2Zn20, PHYSICAL REVIEW B, 93(6), 20160209
  72. Anisotropic Thermopower of the Antiferromagnetic Kondo Semiconductor CeOs2Al10 Doped with 5d Electrons and Holes, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 84(8), 20150815
  73. Raman scattering study of lattice dynamics in caged compounds, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 80, 201107
  74. NMR studies of Ba8Ga16Sn30 clathrates, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 80, 201107
  75. Effect of La Substitution in PrIr2Zn20 on the Superconductivity and Antiferro-Quadrupole Order, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 84(6), 20150615
  76. La Substitution Effect on Superconducting Transition and Doublet Ground State in PrIr2Zn20, JPS Conf. Proc., 3, 011039-1-011039-5, 201406
  77. Suppression of Superconductivity in PrRh2Zn20 by the Substitution of Co for Rh, JPS Conf. Proc., 3, 011042-1-011042-6, 201406
  78. High-Sensitive Measurements of Magnetization in PrPb3 with SQUID Magnetometer, JPS Conf. Proc., 3, 011052-1-011052-5, 201406
  79. Atomic Dynamics and Structural Transitions in Caged Compounds RRu2Zn20 (R = La and Pr), JPS Conf. Proc., 3, 011068-1-011068-5, 201406
  80. Anomalous Enhancement of Seebeck Coefficient in PrIr2Zn20, JPS Conf. Proc., 3, 011091-1-011091-5, 201406
  81. Release of the Magnetic Frustration in a Quasi-Kagome Antiferromagnet YbAgGe by Au Substitution, JPS Conf. Proc., 3, 014005-1-014005-5, 201406
  82. Synthesis and physical properties of a new caged compound Ce3Pd20As6 of the C6Cr23-type structure, JOURNAL OF ALLOYS AND COMPOUNDS, 622, 676-680, 20150215
  83. Competition between Quadrupole and Magnetic Kondo Effects in Non-Kramers Doublet Systems, Journal of Physics: Conference Series, 592, 012099-1-012099-10, 20150318
  84. Anomalous Enhancement of Seebeck Coefficient in Pr-Based 1-2-20 System with Non- Kramers Doublet Ground States, Journal of Physics: Conference Series, 592, 012025-1-012025-9, 20150318
  85. Interplay between low-energy optical phonon modes and structural transition in PrT2Zn20 (T=Ru and Ir), Journal of Physics: Conference Series, 592, 012024-1-012024-6, 20150318
  86. Thermoelectric properties of Mg3Sb2-xBix single crystals grown by Bridgman method, Mater. Res. Express, 2, 55903, 20150527
  87. Magnetic properties of the tetragonal compounds CeB2C2 and PrB2C2, Journal of Magnetism and Magnetic Materials, 221, 293-300, 20000401
  88. Long Periodic Magnetic Structure in CeB2C2, Journal of the Physical Society of Japan, 72, 3303-3304, 20030401
  89. Antiferroquadrupolar ordering and magnetic-field-induced phase transition in the cage compound PrRh2Zn20, PHYSICAL REVIEW B, 87(20), 20130507
  90. Tuning of magnetic and transport properties in Bi2Te3 by divalent Fe doping, PHYSICAL REVIEW B, 87(20), 20130515
  91. Anisotropic c-f hybridization in the Kondo semiconductor CeFe2Al10, JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 63(3), 508-511, 201308
  92. Evidence of a rattling transition in the caged compounds LaRu2Zn20 and LaIr2Zn20: La-139 NMR studies, JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 63(3), 650-653, 201308
  93. Weak Ferromagnetism below 41K and Structural Transition at 395K in CeIr3B2 Single Crystal, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 82(10), 201310
  94. ★, Simultaneous Pressure-Induced Magnetic and Valence Transitions in Type-I Clathrate Eu8Ga16Ge30, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 83(1), 201401
  95. Thermoelectric properties of Mn-doped Mg-Sb single crystals, JOURNAL OF MATERIALS CHEMISTRY A, 2(31), 12311-12316, 2014
  96. Electrical properties of Ba3C60 collapsed under high-pressure and high-temperature conditions, CARBON, 73, 125-131, 201407
  97. Thermoelectric properties in Mn-doped Bi2Se3, CURRENT APPLIED PHYSICS, 14(8), 1041-1044, 201408
  98. Well-Defined Crystal Field Splitting Schemes and Non-Kramers Doublet Ground States of f Electrons in PrT2Zn20 (T = Ir, Rh, and Ru), JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 82(4), 201304
  99. Magnetic and transport properties of a new caged compound PrOs2Zn20, JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 62(12), 2143-2145, 201307
  100. Superconductivity of metal nitride chloride beta-MNCl (M = Zr, Hf) with rare-earth metal RE (RE = Eu, Yb) doped by intercalation, SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 26(4), 201304
  101. Quadrupole Ordering and Multipole Interactions in Pr-based Compounds, Journal of Physics: Condensed Matter, 15, S2055-S2061, 20030401
  102. Measuring nuclear magnetization in strong magnetic fields, Physica B, 329-333, 1582-1585, 20030401
  103. ★, Angle-Resolved Magnetization Measurements on Antiferroquadrupolar Ordering System PrPb3: Evidence for Anisotropic Quadrupolar Interaction, Journal of the Physical Society of Japan, 73, 2377-2380, 20040401
  104. Phase Diagrams and Ground State Magnetic Properties of Pr-based Filled Skutterudites, Physica B, 359-361, 836-843, 20050401
  105. Anomalous Phase Transition in the Heavy Fermion Compound Ce3Ir4Sn13, Physica B, 359-361, 248-250, 20050401
  106. ★, Observation of modulated quadrupole structures in PrPb3, Physical Review Letters, 94, 197201, 20050401
  107. Neutron Diffraction Study on the Antiferroquadrupolar Ordering System PrPb3 in a Magnetic Field, Physica B, 359-361, 935-937, 20050401
  108. Long Periodic Quadrupolar Structures in PrPb3, Journal of the Physical Society of Japan, 75(Supplement), 186-188, 20060401
  109. Specific Heat Measurements on a Modulated Quadrupolar Ordering Compound PrPb3 at Very Low Temperatures, Journal of the Physical Society of Japan, 75(SUPPLEMENT), 183-185, 20060401
  110. A kondo lattice antiferromagnet CePd5Al2, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 76(12), 2007
  111. Angle-resolved magnetization study of the multipole ordering in PrFe4P12, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 76(6), 2007
  112. Neutron scattering study of magnetic ordering and excitations in the ternary rare-earth diborocarbide Ce11B2C2, Physical Review B, 76(18), 184427, 20071121
  113. Quadrupolar ordered state at high fields in PrPb3, Journal of Physics and Chemistry of Solids, 68(11), 2091-2094, 20071121
  114. Muon Knight shift measurements on PrPb3 in paraquadrupolar state, Journal of Magnetism and Magnetic Materials, 310(2), 743-745, 20070401
  115. Angle-resolved magnetization study of the multipole ordering in PrFe4P12, Journal of Physical Society of Japan, 76(6), 064701, 20070401
  116. Angle-resolved magnetization study of the multipole ordering in PrFe4P12, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 76(6), 200706
  117. Quadrupolar ordered state at high fields in PrPb3, JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 68(11), 2091-2094, 200711
  118. Neutron Scattering Study of Kondo Lattice Antiferromagnet YbNiSi3, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 77(12), 2008
  119. Neutron Scattering Study of Kondo Lattice Antiferromagnet YbNiSi3, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 77(12), 200812
  120. Magneto-optic effect in amorphous Bi3Fe5O12 waveguides sputtered at room temperature, JAPANESE JOURNAL OF APPLIED PHYSICS, 47(4), 2915-2920, 200804
  121. Magnetocrystalline Anisotropy and Crystal Fields in the Weak-Ferromagnet Ce4Ni3Pb4, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 78(2), 200902
  122. Quantized Hyperfine Field at an Implanted mu(+) Site in PrPb3: Interplay between Localized f Electrons and an Interstitial Charged Particle, PHYSICAL REVIEW LETTERS, 102(9), 20090306
  123. Thermoelectric and Magnetic Properties of a Narrow-Gap Semiconductor FeGa3, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 78(1), 200901
  124. Magnetic properties of RPd5Al2 (R = Y, Ce, Pr, Nd, Sm, Gd), PHYSICA B-CONDENSED MATTER, 404(19), 2946-2948, 20091015
  125. ★, Superconductivity and Structural Phase Transitions in Caged Compounds RT2Zn20 (R = La, Pr, T = Ru, Ir), JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 79(3), 201003
  126. Interplay between thermoelectric and structural properties of type-I clathrate K8Ga8Sn38 single crystals, PHYSICAL REVIEW B, 81(16), 20100415
  127. New Phase Diagram of PrPb3 in [100] Magnetic Filed Direction, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 79(9), 201009
  128. Multiple Ferromagnetic Structures in an Off-Center Rattling System Eu8Ga16Ge30, Journal of Physics: Conference Series, 200, 022044-1-4, 20100201
  129. Sinusoidally Modulated Magnetic Structure of a Kondo Lattice Compound CePd5Al2, Journal of Physics: Conference Series, 200, 032023-1-4, 20100301
  130. High-Pressure Synthesis and Superconductivity of a New Binary Lanthanum Germanide LaGe3 with Triangular Ge-3 Cluster Units, INORGANIC CHEMISTRY, 50(9), 3901-3906, 20110502
  131. ★, Antiferroquadrupolar Ordering in a Pr-Based Superconductor PrIr2Zn20, PHYSICAL REVIEW LETTERS, 106(17), 20110429
  132. Antiferro-Quadrupolar Ordering at the Lowest Temperature and Anisotropic Magnetic Field-Temperature Phase Diagram in the Cage Compound PrIr2Zn20, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 80(9), 2011
  133. Off-center rattling and thermoelectric properties of type-II clathrate (K, Ba)(24)(Ga, Sn, square)(136) single crystals, PHYSICAL REVIEW B, 84(21), 20111206
  134. Ultrasonic investigation of a heavy fermion compound YbAgGe, Journal of Physics: Conference Series, 273, 012011-1-5, 20110201
  135. Elastic modulus of cage compound PrRu2Zn20, J. Phys.: Conf. Ser., 273, 012136(1-4), 20110201
  136. "Magnetic and transport properties of ROs2Al10 (R=Pr, Nd, Sm, and Gd)", J. Phys. Soc. Jpn., 80 SA, SA021(1-3), 20110701
  137. Raman scattering study of lattice dynamics in caged compounds, J. Phys. Soc. Jpn., 80 SA, SA037(1-3), 20110701
  138. NMR Evidence of Freezing of Rattling Motion in LaIr2Zn20 and LaRu2Zn20, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 81(2), 201202
  139. Multipole and superconducting state in PrIr2Zn20 probed by muon spin relaxation, PHYSICAL REVIEW B, 85(23), 20120629
  140. Nonmagnetic ground states and phase transitions in the caged compounds PrT2Zn20 (T=Ru, Rh and Ir), JOURNAL OF PHYSICS-CONDENSED MATTER, 24(29), 20120725
  141. Ferromagnetic instability in a doped band gap semiconductor FeGa3, PHYSICAL REVIEW B, 86(14), 20121031
  142. ★, Simultaneous superconducting and antiferroquadrupolar transitions in PrRh2Zn20, PHYSICAL REVIEW B, 86(18), 20121121
  143. Determination of spin Hamiltonian in the Ni4 magnetic molecule, Phys. Rev. B, 86, 64422, 2012
  144. Non-Kramers doublet and phase transitions in Pr 1-2-20 system, Kotai Butsuri, 47(11), 565, 2012
  145. Pressure effect on the ferromagnetism of an off-center rattling system Eu8Ga16Ge30, J. Phys.: Conf. Ser., 391, 12075, 2012
  146. T-H Phase Diagram of PrPb3 in [001] and [110] Magnetic Field Directions, J. Phys.: Conf. Ser., 391, 12060, 2012
  147. Nonmagnetic Γ3 doublet ground state in a caged compound PrRh2Zn20, J. Phys.: Conf. Ser., 391, 12051, 2012

Invited Lecture, Oral Presentation, Poster Presentation

  1. Zn-site substitution effect on antiferromagnetic order in NdCo2Zn20, T. Onimaru, R. J. Yamada, R. Yamamoto, Y. Yamane, K. Umeo, and T. Takabatake, J-Physics 2019 International Conference & KINKEN-WAKATE 2019 Multipole Physics, 2019/09/19, Without Invitation, English
  2. Non-Fermi liquid behaviors due to possible two-channel Kondo effect in non-Kramers doublet systems, T. Onimaru, International workshop "Novel Phenomena in Quantum Materials driven by Multipoles and Topology", 2018/04/09, With Invitation, English, Kashiwa, Japan
  3. A variety of phenomena in non-Kramers doublet ground states, T. Onimaru, International workshop ECMP2018, 2018/03/05, Without Invitation, English
  4. Emergence of quadrupole-driven phenomena in non-Kramers Pr 1-2-20 systems, T. Onimaru, International Workshop on Multipole Physics and Related Phenomena, 2017/09/24, With Invitation, English
  5. Quadrupole-driven exotic phenomena in non-Kramers doublet systems, T. Onimaru, 13th German-Japanese symposium, 2016/09/27, With Invitation, English, Sappro, Hokkaido
  6. Quadrupole-driven exotic phenomena in a caged compound PrIr2Zn20 with 4f2 configuration, T. Onimaru, Les petits seminaires de l'axe 1, 2016/06/07, Without Invitation, Japanese, Le Laboratoire Léon Brillouin (LLB), France
  7. Quadrupole-Driven Non-Fermi Liquid Behaviors in Pr 1-2-20 System, T. Onimaru, J-Physics: Mini International Workshop: "Physics of Strongly Correlated Electron Systems under Extreme Conditions", 2016/04/13, Without Invitation, English, Rokkodai Campus, Kobe University
  8. Non-Fermi Liquid Behaviors in a Non-Kramers 4f2 System PrIr2Zn20, T. Onimaru, K. T. Matsumoto, K. Wakiya, K. Uenishi, K. Umeo, and T. Takabatake, TMU International Symposium 2015 "New Quantum Phases Emerging from Novel Crystal Structure", 2015/09/24, With Invitation, English
  9. Quadrupole Order and Quadrupole Kondo Effect in a Non-Kramers System PrIr2Zn20, T. Onimaru, 13th German-Japanese symposium: Interplay of Spin-Orbital Degrees of Freedom in Strongly Correlated Electron Systems, 2014/07, With Invitation, English, Ringberg, Germany
  10. Magnetic field induced quantum critical phenomena in a non- Kramers doublet system PrIr2Zn20, T. Onimaru, K. T. Matsumoto, K. Umeo, S. Kittaka, T. Sakakibara, T. Takabatake, International Conference on Strongly Correlated Electron Systems (SCES2014), 2014/07, Without Invitation, English, Grenoble, France
  11. Quadrupolar ordered phases in a Pr-based superconductor PrT2Zn20 (T=Rh, Ir), T. Onimaru, New Horizon of Strongly Correlated Physics (NHSCP2014), 2014/06, With Invitation, English, Kashiwa, Japan
  12. Superconducting and antiferroquadrupolar transitions in isoelectronic caged compounds PrT2Zn20 (T=Co, Rh, and Ir), T. Onimaru, K. T. Matsumoto, N. Nagasawa, K. Wakiya, Y. Obayashi, Y. Shimada, Y. F. Inoue, K. Umeo, S. Kittaka, T. Sakakibara, Y. Karaki, M. Kubota, Y. Matsushita, and T. Takabatake , SCES2013, 2013/08, Without Invitation, Japanese, Tokyo, Japan
  13. Incommensurate quadrupolar structure in the rare-earth compound, PrPb3, T. Onimaru, Aperiodic 2006, 2006/09, With Invitation, English
  14. Magnetic Properties of Rare-earth Compounds with a Caged Structure, T. Onimaru, International Symposium for Young Scientists on Physics of Strongly Correlated Electrons, 2009/08, With Invitation, English

Awards

  1. 2005/03, 10th Award for Publication in the Physical Society of Japan, The Physical Society of Japan, Antiferroquadrupolar Ordering and Magnetic Properties of the Tetragonal DyB2C2 Compound
  2. 2010/02, JPSJ Papers of Editors' Choice, Journal of the Physical Society of Japan, Physical Society of Japan, Superconductivity and Structural Phase Transitions in Caged Compounds RT2Zn20 (R=La, Pr, T=Ru, Ir)

External Funds

Acceptance Results of Competitive Funds

  1. マツダ研究助成-科学技術振興関係-, 2008, 2010
  2. KAKENHI, 2014, 2016
  3. KAKENHI, Modulated ferromagnetic structure in rare-earth clathrate compounds, 2011, 2013
  4. KAKENHI, 2011, 2012
  5. KAKENHI, 2009, 2010
  6. KAKENHI, 2015
  7. KAKENHI, 2015
  8. KAKENHI(Fund for the Promotion of Joint International Research (Fostering Joint International Research)), 2016, 2018
  9. KAKENHI(Grant-in-Aid for Scientific Research (B)), 2018, 2021

Social Activities

Organizing Academic Conferences, etc.

  1. Emergent Condensed-Matter Physics 2018, 1803/05, 1803/06