Presentation

[107] Dynamical quadrupole structure factor of frustrated ferromagnetic chain
Hiroaki Onishi
The International Conference on Strongly Correlated Electron Systems (SCES2017)
7/17(Mon)-21(Fri)/2017, Prague, Czech Republic
Poster, 7/17, Mo-4-36
[106]
Hiroaki Onishi
ISSP Joint-Use Supercomputer and CCMS workshop
4/3(Mon)-4(Tue)/2017, Kashiwa, Japan
Poster, 4/3,
[105] Spin transport and heat transport of frustrated quantum spin chains
Hiroaki Onishi
Workshop on Quantum Spin Systems
12/2(Fri)-3(Sat)/2016, Fukui, Japan
Oral, 12/3, 3-3
[104] Spin transport and heat transport of frustrated quantum spin chains
Hiroaki Onishi
JPS Autumn Meeting 2016
9/13(Tue)-16(Fri)/2016, Kanazawa, Japan
Oral, 9/14, 14pBK-5
[103] Spin and quadrupole excitations in spin nematic state
Hiroaki Onishi
8th International Conference on Highly Frustrated Magnetism (HFM2016)
9/7(Wed)-11(Sun)/2016, Taipei, Taiwan
Poster
[102] Magnetic excitations of spin nematic state in frustrated ferromagnetic chain
Hiroaki Onishi
Post-K Workshop
5/7(Sat)/2016, Tokyo, Japan
Oral, 5/7, No.7
[101] Magnetic excitations of spin nematic state in frustrated ferromagnetic chain
Hiroaki Onishi
ISSP Workshop "スピン系物理の深化と最前線"
11/16(Mon)-18(Wed)/2015, Kashiwa, Japan
Poster, 11/17, P14
[100] Transverse field induced state in anisotropic ferromagnetic frustrated chain
Hiroaki Onishi
JPS Autumn Meeting 2015
9/16(Wed)-19(Sat)/2015, Suita, Japan
Poster, 9/16, 16pPS-33
[99] Effects of magnetic anisotropy on spin nematic state
Hiroaki Onishi
JPS 70th Annual Meeting 2015
3/21(Sat)-24(Tue)/2015, Tokyo, Japan
Poster, 3/21, 21pPSA-42
[98] Entanglement entropy of spin-orbital system
Hiroaki Onishi
YITP Workshop "New Trends in Quantum Many-body Physics"
12/15(Mon)-17(Wed)/2014, Kyoto, Japan
Poster, 12/16, P1
[97] Dynamical DMRG study of spin dynamics of ferromagnetic frustrated chain
Hiroaki Onishi
4th CCMS Symposium & ISSP Joint-Use Supercomputer Activity Report 2014
11/12(Wed)-14(Fri)/2014, Kashiwa, Japan
Poster, 11/13, P07
[96] Effect of magnetic field on spin-orbital state of vanadium oxides with zigzag chain structure
Hiroaki Onishi
JPS Autumn Meeting 2014
9/7(Sun)-10(Wed)/2014, Kasugai, Japan
Poster, 9/9, 9aPS-39
[95] Effects of magnetic anisotropy on spin dynamics of ferromagnetic frustrated chain
Hiroaki Onishi
The International Conference on Strongly Correlated Electron Systems (SCES2014)
7/7(Mon)-11(Fri)/2014, Grenoble, France
Poster, 7/8, Tu-089
[94] Spin dynamics of ferromagnetic frustrated chain in applied magnetic field
Hiroaki Onishi
The OIST International Workshop on Novel Quantum Materials and Phases (NQMP2014)
5/14(Wed)-17(Sat)/2014, Okinawa, Japan
Poster, 5/15, 15P-5
[93] Spin-orbital state of vanadium oxides with zigzag chain structure
Hiroaki Onishi
JPS 69th Annual Meeting 2014
3/27(Thu)-30(Sun)/2014, Shonan, Japan
Oral, 3/28, 28pCG-8
[92] Spin dynamics of ferromagnetic frustrated chain in high magnetic field
Hiroaki Onishi
Workshop on Quantum Spin Systems
12/13(Fri)-14(Sat)/2013, Fukui, Japan
Oral, 12/13, 13-5
[91] Ground state of S=1 zigzag spin-orbital chain
Hiroaki Onishi
JPS Autumn Meeting 2013
9/25(Wed)-28(Sat)/2013, Tokushima, Japan
Poster, 9/25, 25pPSB-28
[90] Magnetic excitations of spin-1/2 frustrated anisotropic ferromagnetic chain in magnetic field
Hiroaki Onishi
Light and Particle Beams in Materials Science (LPBMS2013)
8/29(Thu)-31(Sat)/2013, Tsukuba, Japan
Poster, 8/29-30, P049
[89] Ground state of S=1 zigzag spin-orbital chain
Hiroaki Onishi
The International Conference on Strongly Correlated Electron Systems (SCES'13)
8/5(Mon)-9(Fri)/2013, Tokyo, Japan
Poster, 8/6, 6P-218
Proceedings: To appear in JPS Conf. Proc.
[88] Electronic state induced by spin-orbit coupling in 5d transition metal oxides
Hiroaki Onishi
The IMR-ASRC 4th REIMEI International Workshop
7/31(Wed)-8/2(Fri)/2013, Tokai, Japan
Poster, 7/31-8/1, PP13
[87] Spin and multipole dynamics of ferromagnetic frustrated chain in high magnetic field
Hiroaki Onishi
JPS 68th Annual Meeting 2013
3/26(Tue)-29(Fri)/2013, Higashi-Hiroshima, Japan
Oral, 3/27, 27aXW-4
[86] Spin and multipole dynamics of ferromagnetic frustrated chain in high magnetic field
Hiroaki Onishi
JAEA Synchrotron Radiation Research Symposium "Magnetism in Quantum Beam Science"
3/11(Mon)-13(Wed)/2013, SPring-8, Japan
Poster, 3/12, P6
[85] Multipole state of 5d transition metal oxides with strong spin-orbit coupling
Hiroaki Onishi
The 4th Workshop on "Emergence of Heavy Electrons and Their Ordering"
1/12(Sat)-14(Mon)/2013, O-Okayama, Japan
Poster, 1/13, PS83
[84] Dynamical spin structure factor of ferromagnetic frustrated chain
Hiroaki Onishi
YITP Workshop "Physics of Quantum Spin Systems"
11/12(Mon)-14(Wed)/2012, Kyoto, Japan
Oral, 11/13, No.6, Session 4
[83] Multipole state in 5d transition metal oxides
Hiroaki Onishi
JPS Autumn Meeting 2012
9/18(Tue)-21(Fri)/2012, Yokohama, Japan
Oral, 9/21, 21aFG-5
[82] Dynamical spin structure factor of ferromagnetic-antiferromagnetic zigzag spin chain
Hiroaki Onishi
JPS Autumn Meeting 2012
9/18(Tue)-21(Fri)/2012, Yokohama, Japan
Oral, 9/18, 18aCC-2
[81] Non-equilibrium dynamics of multi-orbital correlated electron system under time-depending electric field
Hiroaki Onishi
The International Conference on Quantum Criticality and Novel Phases (QCNP2012)
8/26(Sun)-29(Wed)/2012, Dresden, Germany
Poster, 8/28, TP39
Proceedings: Phys. Status Solidi B 250, 553 (2013)
[80] Multipole state in 5d transition metal oxides
Hiroaki Onishi
10th Prague Colloquium on f-Electron Systems (PCFES2012)
8/21(Tue)-24(Fri)/2012, Prague, Czech Republic
Oral, 8/23, o28
[79] Charge-spin-orbital excitation dynamics in Mott insulator induced by spin-orbit coupling
Hiroaki Onishi
JPS 67th Annual Meeting 2012
3/24(Sat)-27(Tue)/2012, Nishinomiya, Japan
Oral, 3/25, 25aYF-4
[78] Spin-orbital state in 5d transition metal oxides with strong spin-orbit coupling
Hiroaki Onishi
Sixth Open Symposium of Next-Generation Integrated Nanoscience Simulation Software
3/5(Mon)-6(Tue)/2012, Kobe, Japan
Poster, 3/6, N37
[77] Spin-orbital state in 5d transition metal oxides with strong spin-orbit coupling
Hiroaki Onishi
The 2nd ASRC International Workshop on Magnetic Materials and Nanostructures
1/10(Tue)-13(Fri)/2012, Tokai, Japan
Poster, 1/10-13, No.33
[76] Complex orbital state and multipole state in 5d transition metal oxides with strong spin-orbit coupling
Hiroaki Onishi
Heavy-Electrons Workshop "New quantum phases in strongly correlated systems with multi-degrees of freedom"
11/11(Fri)-12(Sat)/2011, Niigata, Japan
Oral, 11/11, 11B2
[75] Excitation dynamics of spin-orbit-induced Mott insulator
Hiroaki Onishi
JPS Autumn Meeting 2011
9/21(Wed)-24(Sat)/2011, Toyama, Japan
Poster, 9/22, 22aPS-7
[74] Spin-orbital state induced by strong spin-orbit coupling
Hiroaki Onishi
The International Conference on Strongly Correlated Electron Systems (SCES'11)
8/29(Mon)-9/3(Sat)/2011, Cambridge, UK
Poster, 8/31, No.46
Proceedings: J. Phys.: Conf. Ser. 391, 012102 (2012)
[73] Non-equilibrium dynamics of multi-orbital system under time-depending electric field
Hiroaki Onishi
JPS 66th Annual Meeting 2011
3/25(Fri)-28(Mon)/2011, Niigata, Japan
Oral, 3/28, 28aEF-11
[72] Time-dependent DMRG study of real-time dynamics of strongly correlated electron systems with orbital degeneracy
Hiroaki Onishi
Fifth Open Symposium of Next-Generation Integrated Nanoscience Simulation Software
2/22(Tue)-23(Wed)/2011, Kobe, Japan
Poster, 2/23, P36
[71] Wavepacket dynamics in one-dimensional extended Hubbard model
Hiroaki Onishi and Elbio Dagotto
The third international workshop on dynamics and manipulation of quantum systems (DMQS2010)
2/14(Mon)-16(Wed)/2011, Tokyo, Japan
Poster, 2/15, P-14
[70] Time-dependent DMRG study of real-time dynamics of strongly correlated electron systems with orbital degeneracy
Hiroaki Onishi
ISSP-CMSI-Nano Project Joint Workshop
1/5(Wed)-7(Fri)/2011, Kashiwa, Japan
Poster, 1/6, N-11
[69] Time-dependent DMRG study of orbital-degenerate Hubbard model
Hiroaki Onishi
New Development of Numerical Simulations in Low-Dimensional Quantum Systems: From Density Matrix Renormalization Group to Tensor Network Formulations
10/27(Wed)-29(Fri)/2010, Kyoto, Japan
Poster, 10/28, No.15
[68] Effect of spin-orbit coupling in strongly correlated compounds
Hiroaki Onishi
Joint International Conference on Supercomputing in Nuclear Application + Monte Carlo (SNA+MC2010)
10/17(Sun)-21(Thu)/2010, Tokyo, Japan
Oral, 10/20, A2-5
[67] Complex orbital state and multipole state in 5d transition metal oxides
Hiroaki Onishi
JPS Autumn Meeting 2010
9/23(Thu)-26(Sun)/2010, Sakai, Japan
Oral, 9/25, 25aXP-5
[66] Wavepacket dynamics in junction of one-dimensional strongly correlated electron systems
Hiroaki Onishi and Elbio Dagotto
JPS Autumn Meeting 2010
9/23(Thu)-26(Sun)/2010, Sakai, Japan
Oral, 9/24, 24aTE-3
[65] Multipole correlations in t_{2g}-orbital Hubbard model with spin-orbit coupling
Hiroaki Onishi
International Conference on Heavy Electrons (ICHE2010)
9/17(Fri)-20(Mon)/2010, Hachioji, Japan
Poster, 9/19, PSB92
Proceedings: J. Phys. Soc. Jpn. 80 Suppl. A, SA141 (2011)
[64] Non-equilibrium dynamics of multi-orbital system under time-depending electric field
Hiroaki Onishi
Joint European Magnetic Symposia (JEMS2010)
8/23(Mon)-28(Sat)/2010, Krakow, Poland
Poster, 8/27, Abs.464
[63] Transport properties of one-dimensional extended Hubbard model with repulsive and attractive Coulomb interaction
Hiroaki Onishi and Elbio Dagotto
The International Workshop "Ultracold Fermi Gas: Superfluidity and Strong-Correlation (USS-2010)"
5/13(Thu)-15(Sat)/2010, Tokyo, Japan
Poster, 5/14, No.2
[62] Ground state of strongly correlated electron systems with spin-orbit interaction
Hiroaki Onishi
JPS 65th Annual Meeting 2010
3/20(Sat)-23(Tue)/2010, Okayama, Japan
Poster, 3/21, 21pPSB-13
[61] Real-time dynamics of one-dimensional multi-orbital model
Hiroaki Onishi
YITP Workshop "Photo-induced Phenomena in Correlated Electron Systems"
12/10(Thu)-11(Fri)/2009, Kyoto, Japan
Poster, 12/10, No.2
[60] Real-time dynamics of one-dimensional orbital degenerate Hubbard model
Hiroaki Onishi
The second international workshop on dynamics and manipulation of quantum systems (DMQS2009)
10/13(Tue)-16(Fri)/2009, Tokyo, Japan
Oral, 10/14, No.5
[59] Charge excitation dynamics of one-dimensional orbital degenerate Hubbard model
Hiroaki Onishi
JPS Autumn Meeting 2009
9/25(Fri)-28(Mon)/2009, Kumamoto, Japan
Oral, 9/26, 26aRK-2
[58] Spin-orbital state of orbital-degenerate periodic Anderson model
Hiroaki Onishi
The 2nd Workshop on "Emergence of Heavy Electrons and Their Ordering"
8/18(Tue)-20(Thu)/2009, Higashi-Hiroshima, Japan
Poster, 8/19, PS52
[57] Spin-orbital state of orbital-degenerate periodic Anderson model
Hiroaki Onishi
The International Conference on Quantum Criticality and Novel Phases (QCNP2009)
8/2(Sun)-5(Wed)/2009, Dresden, Germany
Poster, 8/3, MP7
[56] Charge-spin-orbital dynamics of one-dimensional two-orbital Hubbard model
Hiroaki Onishi
The 18th International Conference on Magnetism (ICM2009)
7/26(Sun)-31(Fri)/2009, Karlsruhe, Germany
Poster, 7/28, Tu-D-1.4-39
Proceedings: J. Phys.: Conf. Ser. 200, 012152 (2019)
[55] Effects of electron-phonon interaction in quantum-dot systems
Hiroaki Onishi, Elbio Dagotto
JPS 64th Annual Meeting 2009
3/27(Fri)-30(Mon)/2009, Tokyo, Japan
Oral, 3/30, 30aTX-2
[54] Numerical study of orbital-degenerate periodic Anderson model
Hiroaki Onishi
The 1st Workshop on "Emergence of Heavy Electrons and Their Ordering"
3/9(Mon)-11(Wed)/2009, Kashiwa, Japan
Poster, 3/10, PS104
[53] Real-time dynamics of spin-charge separation of one-dimensional strongly correlated electron systems
Hiroaki Onishi, Ivan Gonzalez, Roger Melko, Elbio Dagotto
Workshop on "Classical and quantum dynamics and non-equilibrium stastical mechanics"
3/1(Sun)-3(Tue)/2009, Tokyo, Japan
Oral, 3/1, No.8
[52] Spin-orbital dynamics of multi-orbital system
Hiroaki Onishi
YITP Workshop "Recent Progress in Density Matrix Renormalization Group (DMRG)"
12/16(Tue)-17(Wed)/2008, Kyoto, Japan
Oral, 12/16, No.3
[51] Many-body effects on transport properties of one-dimensional Hubbard chains
Hiroaki Onishi, Elbio Dagotto
JPS Autumn Meeting 2008
9/20(Sat)-23(Tue)/2008, Morioka, Japan
Oral, 9/22, 22aYF-1
[50] Time-dependent DMRG study of spin-charge separation of one-dimensional correlated electron systems
Hiroaki Onishi, Ivan Gonzalez, Roger Melko, Elbio Dagotto
ISSP Workshop on "New developments in the physics of heavy fermions"
7/23(Wed)-25(Fri)/2008, Kashiwa, Japan
Poster, 7/24, P19
[49] Real-time dynamics of spinons and holons in one-dimensional correlated electron systems
Hiroaki Onishi, Ivan Gonzalez, Roger Melko, Elbio Dagotto
JPS 63rd Annual Meeting 2008
3/22(Sat)-26(Wed)/2008, Higashi-Osaka, Japan
Oral, 3/23, 23aTE-12
[48] Real-time dynamics of spinons and holons in one-dimensional correlated electron systems
Hiroaki Onishi, Ivan Gonzalez, Roger Melko, Elbio Dagotto
APS March Meeting 2008
3/10(Mon)-14(Fri)/2008, New Orleans, U.S.A.
Oral, 3/11, L27.00008
[47] Antiferro-orbital state of orbital-degenerate Kondo lattice model with f^{2} configuration
Hiroaki Onishi, Takashi Hotta
International Conference on "New Quantum Phenomena in Skutterudite and Related Systems"
9/26(Wed)-30(Sun)/2007, Kobe, Japan
Poster, 9/28, PA05
Proceedings: J. Phys. Soc. Jpn. 77 Suppl. A, 199-201 (2008)
[46] Antiferro-quadrupole structure of PrPb_{3}
Hiroaki Onishi, Takashi Hotta
JPS Spring Meeting 2007
3/18(Sun)-21(Wed)/2007, Kagoshima, Japan
Poster, 3/18, 18pPSA-50
[45] Deformation of SU(4) singlet spin-orbital state due to Hund's rule coupling
Hiroaki Onishi, Takashi Hotta
APS March Meeting 2007
3/5(Mon)-9(Fri)/2007, Denver, U.S.A.
Oral, 3/8, W11.00012
[44] Effect of Hund's rule coupling in one-dimensional SU(4) spin-orbital system
Hiroaki Onishi, Takashi Hotta
JPS Autumn Meeting 2006
9/23(Sat)-26(Tue)/2006, Chiba, Japan
Oral, 9/25, 25pXD-3
[43] Incommensurate orbital structure due to competition between itinerant and localized f-electron orbitals
Hiroaki Onishi, Takashi Hotta
8th Prague Colloquium on f-Electron Systems (PCFES8)
9/8(Fri)-11(Mon)/2006, Prague, Czech Republic
Oral, 9/9, O-11
[42] Effect of Hund's rule coupling on SU(4) spin-orbital system
Hiroaki Onishi, Takashi Hotta
The 17th International Conference on Magnetism (ICM2006)
8/20(Sun)-25(Fri)/2006, Kyoto, Japan
Poster, 8/24, PSTh-A-047
Proceedings: J. Magn. Magn. Mater. 310, 790-792 (2007)
[41] Low-energy properties of one-dimensional spin-orbital model
Hiroaki Onishi, Takashi Hotta
ISSP International Symposium on Computational Approaches to Quantum Critical Phenomena
8/9(Wed)-11(Fri)/2006, Kashiwa, Japan
Poster, 8/9, P8
[40] Incommensurate orbital state due to competition between itinerant and localized f-electron orbitals
Hiroaki Onishi, Takashi Hotta
The 4th Workshop on "Evolution of New Quantum Phenomena Realized in the Filled Skutterudite Structure"
6/1(Thu)-3(Sat)/2006, Sendai, Japan
Poster, 6/2, P2-29
[39] Multipole correlations in one-dimensional f-electron systems
Hiroaki Onishi, Takashi Hotta
JPS 61st Annual Meeting 2006
3/27(Mon)-30(Thu)/2006, Matsuyama, Japan
Oral, 3/28, 28pTC-7
[38] Multipole properties of one-dimensional f-electron systems
Hiroaki Onishi, Takashi Hotta
APS March Meeting 2006
3/13(Mon)-17(Fri)/2006, Baltimore, U.S.A.
Oral, 3/17, Z23.00009
[37] Multipole correlations in low-dimensional f-electron systems
Hiroaki Onishi, Takashi Hotta
The 5th International Symposium on Advanced Science Research in Celebration of the World Year of Physics 2005 (ASR-WYP-2005)
9/27(Tue)-29(Thu)/2005, Tokai, Japan
Poster, 9/27, PSA26
Proceedings: J. Phys. Soc. Jpn. 75 Suppl., 266-269 (2006)
[36] Charge, spin, and orbital structure in t_{2g}-orbital degenerate Hubbard model
Hiroaki Onishi, Takashi Hotta
JPS Autumn Meeting 2005
9/19(Mon)-22(Thu)/2005, Kyotanabe, Japan
Oral, 9/21, 21pYJ-4
[35] Stripe Charge Ordering in Triangular-Lattice Systems
Hiroaki Onishi, Takashi Hotta
The 24th International Conference on Low Temperature Physics (LT24)
8/10(Wed)-17(Wed)/2005, Orlando, U.S.A.
Oral, 8/13, Sa3-4
Proceedings: AIP Conf. Proc. 850, 1075-1076 (2006)
[34] Spin-Charge-Orbital Ordering on Triangle-Based Lattices
Hiroaki Onishi, Takashi Hotta
The International Conference on Strongly Correlated Electron Systems (SCES'05)
7/26(Tue)-30(Sat)/2005, Vienna, Austria
Poster, 7/28, Th-FHO-23
Proceedings: Physica B 378-380, 589-591 (2006)
[33] Spin frustration controlled by orbital fluctuations
Hiroaki Onishi, Takashi Hotta
APS March Meeting 2005
3/21(Mon)-25(Fri)/2005, Los Angels, U.S.A.
Oral, 3/23, S9.00014
[32] Effects of t_{2g} orbital degree of freedom in spin S=1 Haldane systems
Hiroaki Onishi, Takashi Hotta
YITP Workshop "モンテカルロ法の新展開3"
2/28(Mon)-3/2(Wed)/2005, Kyoto, Japan
Poster, 3/1, 008
[31] Spin and orbital states of frustrated orbital-degenerate Hubbard model
Hiroaki Onishi, Takashi Hotta
The 3rd Workshop on "Evolution of New Quantum Phenomena Realized in the Filled Skutterudite Structure"
2005/1/6(Thu)-8(Sat)/2005, Kobe, Japan
Poster, 1/7, PS41
[30] Effects of t_{2g} orbital degree of freedom in the Haldane system
Hiroaki Onishi, Takashi Hotta
IMR Workshop "New Insights of t_{2g} Orbital Systems"
10/14(Thu)-15(Fri)/2004, Sendai, Japan
Oral, 10/14, No.10
[29] Spin and Orbital Structure of Np-115 Compounds
Hiroaki Onishi, Takashi Hotta
JPS Autumn Meeting 2004
9/12(Sun)-15(Wed)/2004, Aomori, Japan
Poster, 9/14, 14pPSA-47
[28] Disappearance of Spin Frustration due to Orbital Ordering
Hiroaki Onishi, Takashi Hotta
JPS Autumn Meeting 2004
9/12(Sun)-15(Wed)/2004, Aomori, Japan
Oral, 9/13, 13pWD-12
[27] Key Role of Orbital Anisotropy in Geometrically Frustrated Electron System
Hiroaki Onishi, Takashi Hotta
The International Conference on Strongly Correlated Electron Systems (SCES'04)
7/26(Mon)-30(Fri)/2004, Karlsruhe, Germany
Poster, 7/29, TCE2-85
Proceedings: Physica B 359-361, 669-671 (2005)
[26] Orbital Anisotropy and Gemetrical Frustration in Strongly Correlated Electron Systems
Hiroaki Onishi, Takashi Hotta
The 20th General Conference of the Condensed Matter Division of the European Physical Society
7/19(Mon)-23(Fri)/2004, Prague, Czech Republic
Poster, 7/22, S4X11
[25] Orbital Ordering and Magnetic Phase Transition in the Haldane System
Hiroaki Onishi, Takashi Hotta
JPS 59th Annual Meeting 2004
3/27(Sat)-30(Tue)/2004, Fukuoka, Japan
Oral, 3/28, 28aXL-1
[24] Orbital-Controlled Magnetic Transition between Gapful and Gapless Phases in the Haldane System with t_{2g}-orbital Degeneracy
Hiroaki Onishi, Takashi Hotta
Workshop on "Magnetism and superconductivity in f-electron systems"
2/23(Mon)-24(Tue)/2004, Tokai, Japan
Poster, 2/23, No.28
[23] Spin and orbital states of one-dimensional t_{2g}-orbital degenerate Hubbard model
Hiroaki Onishi, Takashi Hotta
Workshop forcussed on Research Reports "Novel Quantum Phenomena in Transition Metal Oxides"
1/19(Mon)-21(Wed)/2004, Bunkyo, Japan
Poster, 1/21, P3-1
[22] Spin and Orbital Structure in the Ground State of Orbital Degenerate Hubbard Models
Hiroaki Onishi, Takashi Hotta
The 3rd International Workshop on Novel Quantum Phenomena in Transition Metal Oxides and The 1st Asia-Pacific Workshop on "Strongly Correlated Electron Systems"
11/5(Wed)-8(Sat)/2003, Sendai, Japan
Poster, 11/7, P3-30
[21] Ferromagnetism in Orbital-Degenerate Hubbard Zigzag Chain
Hiroaki Onishi, Takashi Hotta
JPS Autumn Meeting 2003
9/20(Sat)-23(Tue)/2003, Okayama, Japan
Oral, 9/21, 21pTM-2
[20] Spin and Orbital States in Orbital Degenerate Hubbard Model
Hiroaki Onishi, Takashi Hotta, Kazuo Ueda
JPS 58th Annual Meeting 2003
3/28(Fri)-31(Mon)/2003, Sendai, Japan
Oral, 3/29, 29pWA-9
[19] Effects of quantum lattice vibration on the spin-Peierls transition
Hiroaki Onishi, Seiji Miyashita
The 23rd International Conference on Low Temperature Physics (LT23)
8/20(Tue)-27(Tue)/2002, Hiroshima, Japan
Poster, 8/25, 25CP47
Proceedings: Physica B 329-333, 874-875 (2003)
[18] Quantum phonon effect and temperature effect in a spin-Peierls system
Hiroaki Onishi, Seiji Miyashita
JPS 57th Annual Meeting 2002
3/24(Sun)-27(Wed)/2002, Kusatsu, Japan
Oral, 3/27, 27aXJ-3
[17] Spin-Peierls transition in S=1 antiferromagnetic Heisenberg chain with spin-phonon coupling
Hiroaki Onishi, Seiji Miyashita
Workshop on "Orbital Ordering and Fluctuations in d- and f-electron Systems"
3/4(Mon)-6(Wed)/2002, Tokai, Japan
Poster, 3/5, No.6
[16] Microscopic Structures of Spin and Lattice in Spin-Peierls Systems
Hiroaki Onishi, Seiji Miyashita
Workshop forcussed on Research Reports "Novel Quantum Phenomena in Transition Metal Oxides"
1/16(Wed)-18(Fri)/2002, Bunkyo, Japan
Poster, 1/17, P2-40
[15] Spin-Peierls Transition in S=1 Antiferromagnetic Heisenberg Chains
Hiroaki Onishi, Seiji Miyashita
YITP Workshop "Order, Disorder, and Dynamics in Quantum Spin Systems"
11/15(Thu)-16(Fri)/2001, Kyoto, Japan
Oral, 11/16, No.17
Proceedings: Prog. Theor. Phys. Suppl. 145, 182-187 (2002)
[14] First-order spin-Peierls transition in S=1 antiferromagnetic Heisenberg chains
Hiroaki Onishi, Seiji Miyashita
INTERNATIONAL WORKSHOP ON MATERIALS SIMULATION --PRESENT AND FUTURE--
11/7(Wed)-10(Sat)/2001, Shonan, Japan
Poster, 11/7 and 9, No.34
[13] First-order spin-Peierls transition in S=1 antiferromagnetic Heisenberg chains
Hiroaki Onishi, Seiji Miyashita
International Symposium ISSP-Kashiwa 2001 "Correlated Electrons" (ISSP8)
10/2(Tue)-5(Fri)/2001, Kashiwa, Japan
Poster, 10/3, PB-57
Proceedings: J. Phys. Chem. Solids. 63, 1451-1454 (2002)
[12] Quantum spin and phonon effects in a spin-Peierls system
Hiroaki Onishi, Seiji Miyashita
JPS Autumn Meeting 2001
9/17(Mon)-20(Thu)/2001, Tokushima, Japan
Oral, 9/18, 18pZA-8
[11] Spin-Peierls transition of the first order in S=1 antiferromagnetic Heisenberg chains
Hiroaki Onishi, Seiji Miyashita
JPS 56th Annual Meeting 2001
3/27(Tue)-30(Fri)/2001, Hachioji, Japan
Oral, 3/27, 27pXB-6
[10] First order spin-Peierls transition in a Haldane system
Hiroaki Onishi, Seiji Miyashita
Workshop forcussed on Research Reports "Novel Quantum Phenomena in Transition Metal Oxides"
1/8(Mon)-10(Wed)/2001, Sendai, Japan
Poster, 1/8, P1-31
[9] Spin-Peierls instability in a Haldane system
Hiroaki Onishi, Seiji Miyashita
The 5th BUTSUKO Symposium on Phase Control in Spin-Charge-Photon Coupled Systems
12/12(Tue)-15(Fri)/2000, Shonan, Japan
Poster, 12/13, P18
[8] Spin-Peierls Instability in Haldane Systems
Hiroaki Onishi, Seiji Miyashita
JPS 55th Annual Meeting 2000
9/22(Fri)-25(Mon)/2000, Niigata, Japan
Oral, 9/24, 24pTE-10
[7] Effect of inhomogeneity of lattice on spin-Peierls order
Hiroaki Onishi, Seiji Miyashita
JPS Autumn Meeting 2000
3/22(Wed)-25(Sat)/2000, Suita, Japan
Oral, 3/23, 23aZ-5
[6] Local magnetic structure due to inhomogeneity of interaction in S=1/2 antiferromagnetic chain I
Hiroaki Onishi, Masamichi Nishino, Kizashi Yamaguchi, Seiji Miyashita
1999/9/24(Fri)-27(Mon)
JPS Autumn Meeting 1999
9/24(Fri)-27(Mon)/1999, Morioka, Japan
Oral, 9/24, 24aYQ6
[5] Quantum Monte Carlo simulation on temperature and magnetic field dependence of spin-Peierls order
Hiroaki Onishi, Seiji Miyashita
JPS Autumn Meeting 1999
9/24(Fri)-27(Mon)/1999, Morioka, Japan
Oral, 9/26, 26aT8
[4] Quantum Monte Carlo study for magnetization process
Hiroaki Onishi, Seiji Miyashita
JPS 54th Annual Meeting 1999
3/28(Sun)-31(Wed)/1999, Higashihiroshima, Japan
Poster, 3/30, 30pPSA
[3] Quantum Monte Carlo method for magnetization process
Hiroaki Onishi, Masamichi Nishino, Seiji Miyashita
YITP Workshop "量子効果が顕著な役割を果たす磁性現象の新展開"
3/8(Mon)-10(Wed)/1999, Kyoto, Japan
Poster
Proceedings: Bussei Kenkyu 72-6, 791-793 (1999)
[2] Susceptibility and spin correlation in the one dimensional Heisenberg antiferromagnets with spin-Peierls fluctuation
Hiroaki Onishi, Seiji Miyashita
JPS Autumn Meeting 1998
9/25(Fri)-28(Mon)/1998, Nishihara, Japan
Oral, 9/27, 27aB2
[1] Temperature dependence of spin ordering in the one-dimensional Heisenberg antiferromagnets with spin-Peierls fluctuation
Hiroaki Onishi, Seiji Miyashita
JPS 53rd Annual Meeting 1998
3/30(Mon)-4/2(Thu)/1998, Funabashi, Japan
Oral, 3/31, 31aYN7