Theoretical study of thermoelectric response in time-reversal-symmetry breaking system

2011 Fiscal Year Final Research Report

• Project/Area Number: 21360043
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Applied physics, general
• Research Institution: The Institute of Physical and Chemical Research
• Principal Investigator: KOSHIBAE Wataru 独立行政法人理化学研究所, 交差相関理論研究チーム, 副チームリーダー (20273253)
• Co-Investigator(Kenkyū-buntansha): MORI Michiyasu 独立行政法人日本原子力研究開発機構, 先端基礎研究センター, 研究副主幹 (30396519) ; TSUTSUI Kenji 独立行政法人日本原子力研究開発機構, 量子ビーム応用研究部門, 研究副主幹 (80291011)
• Project Period (FY): 2009 – 2011
• Keywords: 強相関電子系 / 実時間ダイナミクス / 厳密対角化

Research Abstract

In the strongly correlated electron systems, the time-reversal-symmetry breaking often occurs. The ferromagnetic state is an example. In this project, the response of the strongly correlated electron systems to external disturbance has been studied. The main topics examined here are : i) Real-time dynamics of the excitation and relaxation of the quantum electron-classical spin hybrid system. ii) Non-monotonic temperature dependence in themopower due to strong correlation. iii) Theory of superconductor/magnet/superconductor junction. iv) Effect of magnetic impurity in strongly correlated electron systems.

Research Products

• [Journal Article] Towards precise measurement of oscillatory domain wall by ferromagnetic Josephson junction (2012)
  • Author(s): S. Hikino, M. Mori, W. Koshibae, and S. Maekawa
  • Journal Title: Applied Physics Letters Volume: 100 Pages: 152402-1-3
  • Peer Reviewed
• [Journal Article] Electronic excitations around the substituted atom in La_2Cu_<1-y> Ni_yO_4 as seen via resonant inelastic x-ray scattering (2012)
  • Author(s): K. Ishii, K. Tsutsui, K. Ikeuchi, I. Jarrige, J. Mizuki, H. Hiraka, K. Yamada, T. Tohyama, S. Maekawa, Y. Endo, H. Ishii, and Y. Q. Cai
  • Journal Title: Physical Review B Volume: 85 Pages: 104509-1-5
  • Peer Reviewed
• [Journal Article] Photo-induced insulator-metal transition of a spin-electron coupled system (2011)
  • Author(s): W. Koshibae, N. Furukawa, and N. Nagaosa
  • Journal Title: EPL Volume: 94 Pages: 27003-1-5
  • Peer Reviewed
• [Journal Article] Thermoelectric Energy Conversion and Ceramic Thermoelectrics (2011)
  • Author(s): T. Kajitani, Y. Miyazaki, K. Hayashi, K. Yubuta, X. Y. Huang, W. Koshibae
  • Journal Title: Materials Science Forum Volume: 671 Pages: 1-20
  • Peer Reviewed
• [Journal Article] Thermoelectric response in the incoherent transport region near Mott transition : the case study of La_<1-x> Sr_xVO_3 (2011)
  • Author(s): M. Uchida, K. Oishi, M. Matsuo, W. Koshibae, Y. Onose, M. Mori, J. Fujioka, S. Miyasaka, S. Maekawa, and Y. Tokura
  • Journal Title: Phys. Rev. B Volume: 83 Pages: 165127-1-5
  • Peer Reviewed
• [Journal Article] Composite excitation of Josephson phase and spin waves in Josephson junctions with ferromagnetic insulator (2011)
  • Author(s): S. Hikino, M. Mori, S. Takahashi, and S. Maekawa
  • Journal Title: J. Phys. Soc. Jpn Volume: 80 Pages: 074707-1-8
  • Peer Reviewed
• [Journal Article] Microwave-induced supercurrent in a ferromagnetic Josephson junction (2011)
  • Author(s): S. Hikino, M. Mori, S. Takahashi, and S. Maekawa
  • Journal Title: Supercond Sci. Technol Volume: 24 Pages: 024008-1-5
  • Peer Reviewed
• [Journal Article] Spin and Orbital Characters of Excitations in Iron Arsenides Revealed by Simulated Fe L-Edge RIXS (2011)
  • Author(s): E. Kaneshita, K. Tsutsui, and T. Tohyama
  • Journal Title: Physical Review B Volume: 84 Pages: 020511-1-5
  • Peer Reviewed
• [Journal Article] Theory of resonant inelastic X-ray scattering spectrum for Ni impurities in cuprates (2011)
  • Author(s): K. Tsutsui, T. Tohyama, S. Maekawa
  • Journal Title: Journal of Physics and Chemistry of Solids Volume: 72 Pages: 354-357
  • Peer Reviewed
• [Journal Article] Theoretical Study of Resonant Inelastic X-ray Scattering Spectrum in the Hubbard Ladder (2010)
  • Author(s): K. Tsutsui, T. Tohyama, S. Maekawa
  • Journal Title: Physica C Volume: 470 Pages: 232-233
  • Peer Reviewed
• [Journal Article] Resonant inelastic x-ray scattering of La_2Cu_<0.95> Ni_<0.05> O_4, Y. Endoh, H. Ishii, Y. Q. Cai (2010)
  • Author(s): K. Ishii, K. Ikeuchi, I. Jarrige, J. Mizuki, H. Hiraka, Y. Yamada, K. Tsutsui, T. Tohyama, S. Maekawa
  • Journal Title: Physica C Volume: 470 Pages: 155-157
  • Peer Reviewed
• [Journal Article] Temperaturedependence of electronic structures in Sr_<14> Cu_<24> O_<41> studied by resonant inelastic x-ray scattering (2010)
  • Author(s): M. Yoshida, K. Ishii, K. Ikeuchi, I. Jarrige, Y. Murakami, J. Mizuki, K. Tsutsui, T. Tohyama, S. Maekawa, K. Kudo, Y. Koike, Y. Endoh
  • Journal Title: Physica C Volume: 470 Pages: 145-146
  • Peer Reviewed
• [Journal Article] Enhanced pairing correlations near oxygen dopants in cuprate superconductors (2010)
  • Author(s): G. Khaliullin, M. Mori, T. Tohyama, and S. Maekawa
  • Journal Title: Phys. Rev. Lett Volume: 105 Pages: 257005-1-4
  • Peer Reviewed
• [Journal Article] Sign reversal of ac Josephson current in a ferromagnetic Josephson junction (2009)
  • Author(s): S. Hikino, M. Mori, S. Takahashi, and S. Maekawa
  • Journal Title: J. Phys. Soc. Jpn Volume: 78 Pages: 014708-1-8
  • Peer Reviewed
• [Journal Article] Exact Diatonalization Caluculations of Hole Binding around Ni Impurities in Ni-substituted Cuprate Superconductors (2009)
  • Author(s): K. Tsutsui, A. Toyama, T. Tohyama, S. Maekawa
  • Journal Title: Phys. Rev. B Volume: 80 Pages: 224519-1-5
  • Peer Reviewed
• [Journal Article] Real-Time Quantum Dynamics of Interacting Electrons : Self-Organized Nanoscale Structure in a Spin-Electron Coupled System (2009)
  • Author(s): W. Koshibae, N. Furukawa, and N. Nagaosa
  • Journal Title: Phys. Rev. Lett Volume: 103 Pages: 266402-1-4
  • Peer Reviewed
• [Journal Article] Nuclear quadrupole frequency in multilayered cuprates (2009)
  • Author(s): M. Mori, N. A. Shooshtary, T. Tohyama, and S. Maekawa
  • Journal Title: J. Phys. Soc. Jpn Volume: 78 Pages: 123704-1-4
  • Peer Reviewed
• [Journal Article] Mechanism on spatial varitaion of pairing gap by apical atoms in cuprates (2009)
  • Author(s): M. Mori, G. Khaliullin, T. Tohyama, and S. Maekawa
  • Journal Title: J. Phys. Conf. Ser Volume: 150 Pages: 052169-1-4
  • Peer Reviewed
• [Journal Article] Theoretical Study of Resonant Inelastic X-ray Scattering Spectrum in Nickelates
  • Author(s): K. Tsutsui, T. Tohyama, W. Koshibae, and S. Maekawa
  • Journal Title: Journal of Physics : Conference Series Volume: (in press)
  • Peer Reviewed
• [Presentation] Photo-excitation and relaxation dynamics in junction of double-exchange systems (2012)
  • Author(s): W. Koshibae
  • Organizer: APS March Meeting 2012
  • Place of Presentation: Boston, Massachusetts, USA
  • Year and Date: 2012-02-29
• [Presentation] Transport Properties Characterized by Magnetic Domain-Wall Motionin Josephson Junction (2012)
  • Author(s): M. Mori
  • Organizer: APS March Meeting 2012
  • Place of Presentation: Boston, Massachusetts, USA
  • Year and Date: 2012-02-27
• [Presentation] Thermopower in correlated electron systems revisited : nonmonotonic temperature dependence (2011)
  • Author(s): M. Mori
  • Organizer: ARW Workshop Hvar 2011
  • Place of Presentation: Hvar, Croatia
  • Year and Date: 20110918-25
• [Presentation] Influences of magneticfluctuation, resonance, and oscillation on Josephson current in superconductor/ferromagnet/superconductor junction (2011)
  • Author(s): M. Mori
  • Organizer: Vortex matter in nanostructured superconductors(VORTEX VII)
  • Place of Presentation: Rhodes, Greece
  • Year and Date: 20110910-17
• [Presentation] Dynamics of Josephsonphase coupled with spin waves (2011)
  • Author(s): M. Mori
  • Organizer: The 26th International Conference on Low Temperature Physics(LT26)
  • Place of Presentation: Beijing, China
  • Year and Date: 20110810-17
• [Presentation] Theory of thermopower in strongly correlated electron systems : non-monotonic temperature dependence (2011)
  • Author(s): Wataru Koshibae
  • Place of Presentation: Aalto University, Department of Chemistry, Helsinki, Finland
  • Year and Date: 20110614-17
• [Presentation] 遷移金属酸化物にみられる巨大な熱起電力に関する理論的研究 (2011)
  • Author(s): 小椎八重航
  • Organizer: 粉体粉末冶金協会,平成23年度秋季講演大会
  • Place of Presentation: 大阪大学コンベンションセンター,大阪府吹田市山田丘1-1
  • Year and Date: 2011-10-26
• [Presentation] Numerical study of real-time quantum dynamics in spin-electron coupled system (2011)
  • Author(s): Wataru Koshibae
  • Organizer: APS March Meeting 2011
  • Place of Presentation: Dallas, Texas, USA
  • Year and Date: 2011-03-23
• [Presentation] Possible mechanisms of enhanced pairing gap near apical and dopant oxygens in cuprate (2010)
  • Author(s): M. Mori
  • Organizer: The 9th Asia Pacific Workshop on Materials Physics(APW2010)
  • Place of Presentation: Hanoi, Vietnam
  • Year and Date: 20101212-15
• [Presentation] Enhanced pairing correlation near oxygens in cuprate (2010)
  • Author(s): M. Mori
  • Organizer: Super-PIRE/REIMEI workshop
  • Place of Presentation: Knoxville, USA
  • Year and Date: 20101028-31
• [Presentation] Quantum transport in nano-structure of superconductor and ferromagnet (2010)
  • Author(s): M. Mori
  • Organizer: ARW Workshop Hvar 2010
  • Place of Presentation: Hvar, Croatia
  • Year and Date: 20101002-07
• [Presentation] 強相関電子系の熱起電力に関する理論的研究:スピンと軌道自由度の役割 (2010)
  • Author(s): 小椎八重航
  • Organizer: 第5回KEK連携研究会「熱電変換材料と新規機能物質」
  • Place of Presentation: 筑波大学
  • Year and Date: 2010-12-17
• [Presentation] Relaxation dynamics of excited states in spin-electron coupled systems (2010)
  • Author(s): W. Koshibae
  • Organizer: APS March Meeting 2010
  • Place of Presentation: Portland, Oregon, USA
  • Year and Date: 2010-03-17
• [Presentation] 強相関電子系の熱電応答 (2010)
  • Author(s): 小椎八重航
  • Organizer: 第36回化合物新磁性材料研究会「熱電材料と場の理論」
  • Place of Presentation: 東京大学物性研究所
  • Year and Date: 2010-02-24
• [Presentation] Local structure and superconductivity in cuprates (2009)
  • Author(s): M. Mori
  • Organizer: The 7-th International Conference on New Theories, Discoveries and Applications of Superconductors and Related Materials
  • Place of Presentation: Beijing, China
  • Year and Date: 20090513-16
• [Presentation] Exact Diagonalization study for Ni substitution effect in d-p Model (2009)
  • Author(s): K. Tsutsui
  • Organizer: ICC-IMR workshop "Physics on Transition Metal Based Superconductors"
  • Place of Presentation: 東北大学金属材料研究所,仙台
  • Year and Date: 2009-06-26
• [Book] 熱電変換技術の基礎と応用-クリーンエネルギーをめざして- (2011)
  • Author(s): 小椎八重航
  • Total Pages: 31-37
  • Publisher: シーエムシー出版
• [Book] Properties and Applications of Thermoelectric Materials : The Search for New Materials for Thermoelectric Devices(NATO Science for Peace and Security Series B : Physics and Biophysics) (2009)
  • Author(s): W. Koshibae and S. Maekawa
  • Total Pages: 69-79