Hiroshi Shimahara
Last Updated :2024/04/03
- Affiliations, Positions
- Graduate School of Advanced Science and Engineering, Professor
- E-mail
- hirohiroshima-u.ac.jp
Basic Information
Academic Degrees
- Doctor of Science, University of Tsukuba
- Master of Science, University of Tsukuba
Research Fields
- Mathematical and physical sciences;Physics;Condensed matter physics II
Research Keywords
- Superconductivity
- Solid State Physics
- Theoretical Physics
Educational Activity
Course in Charge
- 2024, Undergraduate Education, First Semester, Statistical Mechanics I
- 2024, Undergraduate Education, Second Semester, Statistical Mechanics II
- 2024, Undergraduate Education, 4Term, Advanced Physics
- 2024, Undergraduate Education, First Semester, Special Study for Graduation A
- 2024, Undergraduate Education, Second Semester, Special Study for Graduation B
- 2024, Graduate Education (Master's Program) , First Semester, Seminar on Basic Sciences of Matter A
- 2024, Graduate Education (Master's Program) , Second Semester, Seminar on Basic Sciences of Matter B
- 2024, Graduate Education (Master's Program) , Academic Year, Academic Presentation in Basic Sciences of Matter
- 2024, Graduate Education (Master's Program) , 1Term, Exercises in Basic Sciences of Matter A
- 2024, Graduate Education (Master's Program) , 2Term, Exercises in Basic Sciences of Matter A
- 2024, Graduate Education (Master's Program) , 3Term, Exercises in Basic Sciences of Matter B
- 2024, Graduate Education (Master's Program) , 4Term, Exercises in Basic Sciences of Matter B
- 2024, Graduate Education (Master's Program) , 1Term, Introduction to Physics and Material Science
- 2024, Graduate Education (Master's Program) , Academic Year, Advanced Study in Quantum Matter
- 2024, Graduate Education (Doctoral Program) , Academic Year, Advanced Study in Quantum Matter
Award of Education
- 2019/11/02, Hiroshima University
Research Activities
Academic Papers
- Types of Fulde-Ferrell-Larkin-Ovchinnikov states induced by anisotropy effects, PHYSICAL REVIEW B, 79(6), 200902
- Transition from the vortex state to the Fulde-Ferrell-Larkin-Ovchinnikov state in quasi-two-dimensional superconductors, PHYSICAL REVIEW B, 80(21), 200912
- Local Interactions and Van Hove Singularities in High-T_c Superconductor, Jpn. J. Appl. Phys., 26(10), L1674-L1677, 19871001
- ★, Superconductivity and Spin Density Wave in Two Dimensional Hubbard Model, J. Phys. Soc. Jpn., 57(3), 1044-1055, 19880301
- ★, Long-Range Spin-Fluctuations and Superconductivity in Quasi-One-Dimensional Organic Compounds, J. Phys. Soc. Jpn., 58(5), 1735-1747, 19890501
- Magnetic Properties of the Strong Coupling Hubbard Model, J. Phys. Soc. Jpn., 58(3), 801-804, 19890301
- Magnetic Properties and Superconductivity of the Strong Coupling Hubbard Model, J. Phys. Soc. Jpn., 58(11), 4168-4183, 19891101
- ★, Green’s Function Theory of the Two-Dimensional Heisenberg Model - Spin Wave in Short Range Order -, J. Phys. Soc. Jpn., 60(7), 2394-2405, 19940701
- Theory of Spin waves in Short Range Order on the basis of the Two Dimensional t-J Model, Physica C, 185-189, 1517-1518, 19910801
- Fragility of the Antiferromagnetic Long-Range-Order and Spin Correlation in the Two-dimensional t-J Model, J. Phys. Soc. Jpn., 61(3), 989-997, 19920301
- Antiferromagnetic Long-Range-Order and Spin Waves in the Spin-Fermion Model on the CuO_2 Lattice, J. Phys. Soc. Jpn., 61(10), 3708-3720, 19921001
- Antiferromagnetic Transition Temperature and Spin Correlations in Quasi-Two-Dimensional Spin-Fermion Model, J. Phys. Soc. Jpn., 62(4), 1324-1335, 19920401
- Effect of the Landau parameter F_2^a on the magnetic phase diagram of superfluid 3He, Physica B, 194, 801-804, 19940401
- Fermion-Magnon Bound State in a Spin-Fermion Model, J. Phys. Soc. Jpn., 63, 1059-1070, 19940401
- Magnon Exchange Mechanism of Superconductivity in a Generalized Kondo Lattice Model, J. Phys. Soc. Jpn., 63, 1861-1870, 19940401
- Order Parameter Mixing Effect in the Fulde-Ferrell State, J. Phys. Soc. Jpn., 63, 2499-250, 19940401
- ★, Fulde-Ferrell state in a quasi-two-dimensional superconductors, Phys. Rev. B, 50, 12760-12765, 19940401
- A Nonuniform State in a d-Wave Superconductor under Magnetic Field, J. Phys. Soc. Jpn., 64, 371-374, 19950401
- Spiral spin states in a generalized Kondo lattice model with classical spins, Phys. Rev. B, 51, 3027-3030, 19950401
- Nonplanar spiral states of the t-J model with classical spins, Phys. Rev. B, 51(17), 11597-11602, 19950401
- The doping dependence of magnetic ordering in the t-J model with classical spins, Physica B, 206-207(1-4), 688-690, 19950401
- Magnetic phase diagram of a generalized Kondo lattice model with classical localized spins, J. Phys. Soc. Jpn., 65(2), 552-559, 19960201
- Nonuniform superconductivity due to the orbital magnetic effect in a d-wave superconductor in a magnetic field, Phys. Rev. B, 53(18), 12284-12298, 19960401
- A possibility of a new type of the Fulde-Ferrell-Larkin-Ovchinnikov state, Czech. J. Phys., 46, 561-564, 19960401
- ★, Fulde-Ferrell-Larkin-Ovchinnikov State in a Quasi-Two-Dimensional Organic Superconductor, J. Phys. Soc. Jpn., 66(3), 541-544, 19970301
- ★, Crossover from vortex states to the Fulde-Ferrell-Larkin-Ovchinnikov state in two-dimensional s- and d-wave superconductors, J. Phys. Soc. Jpn., 66(11), 3591-3599, 19971101
- ★, Structure of the Fulde-Ferrell-Larkin-Ovchinnikov State in Two-Dimensional Superconductors, J. Phys. Soc. Jpn., 67(3), 736-739, 19980301
- ★, Phase Fluctuations and Kosterlitz-Thouless Transition in Two-Dimensional Fulde-Ferrell-Larkin-Ovchinnikov Superconductors, J. Phys. Soc. Jpn., 67(6), 1872-1875, 19980601
- Stability of Fulde-Ferrell-Larkin-Ovchinnikov state in type-II superconductors against the phase fluctuations, Physica B, 259-261, 492-493, 19990401
- Exactly Aligned Magnetic Field and the Fulde-Ferrell-Larkin-Ovchinnikov State in Quasi-Low-Dimensional Superconductors, Journal of Superconductivity, 12(3), 469-473, 19990301
- Enhancement of the Upper Critical Field Due to a Fermi-Surface Effect in Quasi-Two-Dimensional Superconductors in Parallel Magnetic Fields, J. Phys. Soc. Jpn., 68(9), 3069-3075, 19990901
- Interplay of Fulde-Ferrell-Larkin-Ovchinnikov and Vortex states in two-dimensional Superconductors, J. Low Temp. Phys., 118(1-2), 91-104, 20000101
- Pseudogap due to antiferromagnetic fluctuations and the phase diagram of the high temperature oxide superconductors, J. Phys. Soc. Jpn., 69(6), 1598-1601, 20000601
- Nodeless d-wave superconductivity in a quasi-one-dimensional organic superconductor under anion order, Phys. Rev. B, 61(22), R14936-R14939, 20000401
- Superconductivity in a Ferromagnetic Layered Compound, Phys. Rev. B, 62(21), 14541-15546, 20000401
- Coexistence of Singlet and Triplet Attractive Channels in the Pairing Interactions Mediated by Antiferromagnetic Fluctuations, J. Phys. Soc. Jpn., 69(7), 1966-1969, 20000401
- Upper critical fields of quasi-low-dimensional superconductors with coexisting singlet and triplet pairing interactions in parallel magnetic fields, Phys. Rev. B, 62(5), 3524-3527, 20000401
- Triplet superconductivity induced by screened phonon interactions in ferromagnetic compounds, Europhys. Lett., 57, 247-253, 20020401
- Anisotropic superconductivity mediated by phonons in layered compounds with weak screening effect, Phys. Rev. B, 65, 174502, 20020401
- Enhancement of the upper critical field and a field induced superconductivity in antiferromagnetic conductors, J. Phys. Soc. Jpn., 71(3), 713-716, 20020301
- Temperature dependence of the upper critical field of an anisotropic singlet superconductivity in a square lattice tight-binding model in parallel magnetic fields, J. Phys. Soc. Jpn., 71(5), 1234-1237, 20020501
- Fulde-Ferrell-Larkin-Ovchinnikov state and field-induced superconductivity in an organic superconductor, J. Phys. Soc. Jpn., 71(7), 1644-1647, 20020401
- Upper critical field and field-induced superconductivity in layered superconductors with antiferromagnetic subsystems, Physica B, 329-333, 1442-1443, 20030401
- Internal Transition of Superconducting State by Impurity Doping with a Jump of Isotope Effect Coefficient in Multi-Band Superconductors, J. Phys. Soc. Jpn., 1843-1846, 20030801
- Isotope Effect of Superconductors with Coexisting Interactions of Phonon and Nonphonon mechanisms, J. Phys. Soc. Jpn., 1851-1854, 20030801
- Reduction of the Pauli paramagnetic pair-breaking effect in antiferromagnetic superconductors, Journal of the Physical Society of Japan, 2635-2638, 20041001
- Spin-Triplet Superconductivity Mediated by Phonons in Quasi-One-Dimensional Systems, Journal of the Physical Society of Japan, 3121-3128, 20041101
- Interlayer spin-singlet pairing induced by magnetic interactions in an antiferromagnetic superconductor, Physical Review B, 72, 134518 (7PAGES), 20051021
- Phase Transition without Spontaneous Symmetry Breaking between Hard and Soft Solid States, Journal of the Physical Society of Japan, 74(3), 823-826, 20070301
- Antiferromagnetic superconductors with effective mass anisotropy in magnetic fields, Physical Review B, 74, 024518 (10PAGES), 20060724
- Erratum: Antiferromagnetic superconductors with effective-mass anisotropy in magnetic fields, Physical Revew B, 75, 099902 (1PAGE), 20070328
- ★, Fulde-Ferrell-Larkin-Ovchinnikov State in Heavy Fermion Superconductors, Journal of the Physical Society of Japan, 76(5), 051005 (16 PAGES), 20070501
- FFLO state and exotic superconductors, 96巻(5号), 501-524, 20110801
- Interplay of Fulde-Ferrell-Larkin-Ovchinnikov and vortex states in two-dimensional superconductors, JOURNAL OF LOW TEMPERATURE PHYSICS, 118(1-2), 91-104, 200001
- Nodeless d-wave superconductivity in a quasi-one-dimensional organic superconductor under anion order, PHYSICAL REVIEW B, 61(22), 14936-14939, 20000601
- Pseudogap due to antiferromagnetic fluctuations and the phase diagram of high-temperature oxide superconductors, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 69(6), 1598-1601, 200006
- Coexistence of singlet and triplet attractive channels in the pairing interactions mediated by antiferromagnetic fluctuations, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 69(7), 1966-1969, 200007
- Upper critical fields of quasi-low-dimensional superconductors with coexisting singlet and triplet pairing interactions in parallel magnetic fields, PHYSICAL REVIEW B, 62(5), 3524-3527, 20000801
- Superconductivity in a ferromagnetic layered compound, PHYSICAL REVIEW B, 62(21), 14541-14546, 20001201
- ★, Fulde-Ferrell-Larkin-Ovchinnikov state and field-induced superconductivity in an organic superconductor, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 71(7), 1644-1647, 200207
- Triplet superconductivity induced by screened phonon interactions in ferromagnetic compounds, EUROPHYSICS LETTERS, 57(2), 247-253, 200201
- Enhancement of the upper critical field and a field-induced superconductivity in antiferromagnetic conductors, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 71(3), 713-716, 200203
- Anisotropic superconductivity mediated by phonons in layered compounds with weak screening effects, PHYSICAL REVIEW B, 65(17), 20020501
- Temperature dependence of the upper critical field of anisotropic singlet superconductivity in a square lattice tight-binding model in parallel magnetic fields, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 71(5), 1234-1237, 200205
- Upper critical field and field-induced superconductivity in layered superconductors with antiferromagnetic subsystems, PHYSICA B-CONDENSED MATTER, 329, 1442-1443, 200305
- Internal transition of superconducting state by impurity doping with a jump of isotope-effect coefficient in multiband superconductors, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 72(8), 1843-1846, 200308
- Isotope effect in superconductors with coexisting interactions of phonon and nonphonon mechanisms, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 72(8), 1851-1854, 200308
- Reduction of Pauli paramagnetic pair-breaking effect in antiferromagnetic superconductors, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 73(10), 2635-2638, 200410
- Spin-triplet superconductivity mediated by phonons in quasi-one-dimensional systems, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 73(11), 3121-3128, 200411
- Phase transition without spontaneous symmetry breaking between hard and soft solid states, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 74(3), 823-826, 200503
- Interlayer spin-singlet pairing induced by magnetic interactions in an antiferromagnetic superconductor, PHYSICAL REVIEW B, 72(13), 200510
- Antiferromagnetic superconductors with effective-mass anisotropy in magnetic fields, PHYSICAL REVIEW B, 74(2), 200607
- ★, Fulde-Ferrell-Larkin-Ovchinnikov state in heavy fermion superconductors, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 76(5), 200705
- Phase Diagrams of Noncentrosymmetric Superconductors, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 82(2), 201302
- Dimensional Crossover of the Fulde-Ferrell-Larkin-Ovchinnikov State in Strongly Pauli-Limited Quasi-One-Dimensional Superconductors, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 83(2), 201402
- Temperature Dependence of the Spin Susceptibility in Noncentrosymmetric Superconductors with Line Nodes, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 83(4), 201404
- Stabilization of Long-Range Order by Additional Anisotropic Spins in Two-Dimensional Isotropic Heisenberg Antiferromagnets - A Possible Model of an Organic Compound with Magnetic Anions, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 83(11), 20141115
- Odd- and Even-Frequency Superconductivities Mediated by Ferromagnetic Magnons, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 83(12), 20141215
- Stabilization of Long-Range Order by Additional Anisotropic Spins in Two-Dimensional Isotropic Heisenberg Antiferromagnets —A Possible Model of an Organic Compound with Magnetic Anions—, Journal of the Physical Society of Japan, 83(11), 20141014
- Erratum: "Odd- and Even-Frequency Superconductivities Mediated by Ferromagnetic Magnon" [J. Phys. Soc. Jpn. 83, 123704 (2014)], Journal of the Physical Society of Japan, 84(5), 201506
- Mean Field Theory of a Coupled Heisenberg Model and Its Application to an Organic Antiferromagnet with Magnetic Anions, Journal of the Physical Society of Japan, 85, 024704-1-024704-7, 20160106
- Spin-Flop Transition and a Tilted Canted Spin Structure in a Coupled Antiferromagnet, Journal of the Physical Society of Japan, 85, 043708-1-043708-2, 20160330
- Mean Field Theory of a Coupled Heisenberg Model and Its Application to an Organic Antiferromagnet with Magnetic Anions, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 85(2), 20160315
- Spin-Triplet Pairing Induced by Spin-Singlet Interactions in Noncentrosymmetric Superconductors, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 86(2), 20170215
- On Scaling Relations of Organic Antiferromagnets with Magnetic Anions, Journal of the Physical Society of Japan, 86, 043704-1-043704-5, 20170330
- On Scaling Relations of Organic Antiferromagnets with Magnetic Anions, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 86(4), 20170415
- Spin Structures and Phase Diagrams of Extended Spatially Completely Anisotropic Triangular Lattice Antiferromagnets, Journal of the Physical Society of Japan, 86, 124709-1-124709-7, 20171110
- Spin Structures and Phase Diagrams of Extended Spatially Completely Anisotropic Triangular Lattice Antiferromagnets, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 86(12), 20171215
- Spin Wave Theory in Two-Dimensional Coupled Antiferromagnets, Journal of the Physical Society of Japan, 87(4), 043702-1-043702-5, 20180313
- Spin Wave Theory in Two-Dimensional Coupled Antiferromagnets, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 87(4), 20180415
- Stabilization of the Fulde-Ferrell-Larkin-Ovchinnikov State by Tuning In-plane Magnetic-Field Direction: Application to a Quasi-One-Dimensional Organic Superconductor, Journal of the Physical Society of Japan, 87(8), 083701-1-083701-5, 20180709
- Stabilization of the Fulde-Ferrell-Larkin-Ovchinnikov State by Tuning In-plane Magnetic-Field Direction: Application to a Quasi-One-Dimensional Organic Superconductor, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 87(8), 20180815
- Critical Phenomena in Coupled Magnetic Systems -Application to the Organic Antiferromagnet lambda-(BETS)(2)FeCl4-, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 88(4), 20190415
- Fulde-Ferrell-Larkin-Ovchinnikov State in Quasi-One-Dimensional Systems: Correlation between Fermi-Surface Distortion and Optimal In-Plane Magnetic-Field Direction, Journal of the Physical Society of Japan, 89(2), 024708-1-024708-8, 20200129
- Scaling Theory for Critical Phenomena in Coupled Magnetic Systems - Critical Exponents of pi-d Antiferromagnets -, Journal of the Physical Society of Japan, 89(04), 043001-1-043001-5, 20200306
- Vestigial Van Hove Singularity and Higher-Temperature Superconducting Phase Induced by Perpendicular Uniaxial Pressures in Quasi-Two-Dimensional Superconductors, Journal of the Physical Society of Japan, 89(09), 093704-1-093704-5, 20200812
- Vestigial Van Hove Singularity and Higher-Temperature Superconducting Phase Induced by Perpendicular Uniaxial Pressures in Quasi-Two-Dimensional Superconductors, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 89(9), 20200915
- Fulde-Ferrell-Larkin-Onhinnikov State in Perpendicular Magnetic Fields in Strongly Pauli-Limited Quasi-Two-Dimensional Superconductors, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 90(4), 20210415
- Stability of Mixed-Symmetry Superconducting States with Broken Time-Reversal Symmetry against Lattice Distortions, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 90(6), 20210615
Invited Lecture, Oral Presentation, Poster Presentation
- Magnetic torque in coupled antiferromagnets in a spin-flop-cross-over regime, Hiroshi Shimahara, 2023/03/24, Without Invitation, Japanese, Japanese Physical Society
- Magnetic torque and spin-flop transition in complex antiferromagnets, Hiroshi Shimahara, 2022/09/13, Without Invitation, Japanese, Japanese Physical Society
- Correlation between Fermi-surface Distortion and Optimal In-Plane Magnetic Field Direction in The Fulde-Ferrell-Larkin-Ovchinnikov State in Quasi-One-Dimensional Superconductors, 2021/03, Without Invitation, Japanese
- Theory of critical phenomena in coupled magnets, Hiroshi Shimahara, 2019/03/14, Without Invitation, Japanese
- Perturbation theory in extended Kondo lattice model and the application to quasi-two-dimensional organic conductors, Yuki Kohno and Hiroshi Shimahara, 2019/03/14, Without Invitation, Japanese
- In-plane magnetic field angle dependence and phase diagram of the FFLO state in quasi-organic superconductors, Katsumi Itahashi and Hiroshi Shimahara, 2019/03/14, Without Invitation, Japanese
- Theory of critical phenomena in coupled antiferromagnets, Hiroshi Shimahara, 2018/09/09, Without Invitation, Japanese
- Perturbation theory in extended Kondo lattice model and its application to the organic antiferromagnets, Yuki Kohno and Hiroshi Shimahara, 2018/09/09, Without Invitation, Japanese
- Statility of the FFLO state in quasi-one-dimensional superconductors in in-plane magnetic field, Katsumi Itahashi and Hiroshi Shimahara, 2018/09/09, Without Invitation, Japanese
- Order parameter mixing effect on the FFLO state of quasi-one-dimensional supercondoctors, 2016/03/21, Without Invitation, Japanese
- Phase transitions of anisotropic coupled magnetic systems in magnetic field, Hiroshi Shimahara, Kazuhiro Ito, 71th Annual Meeting, Japanese Physical Society of Japan, 2016/03/19, Without Invitation, Japanese
- Fulde-Ferrell-Larkin-Ovchinnikov state in quasi-low-dimensional superconductors, Hiroshi Shimahara, March Meeting 2005 of American Physical Society, 2005/03, With Invitation, English, Americal Physical Society, Los Angels
- Stability of mixed-symmetry superconducting states with broken time-reversal symmetry against lattice distortions, 2021/09/23, Without Invitation, Japanese