Synchrotron radiation spectroscopy and search for novel correlated electronic states at transition-metal oxide interfaces

2009 Fiscal Year Final Research Report

• Project/Area Number: 19204037
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Condensed matter physics II
• Research Institution: The University of Tokyo
• Principal Investigator: 藤森 淳 The University of Tokyo, 大学院・理学系研究科, 教授 (10209108)
• Co-Investigator(Kenkyū-buntansha): 組頭 広志 , 大学院・工学系研究科, 准教授 (00345092)
• Project Period (FY): 2007 – 2009
• Keywords: 遷移金属酸化物 / 超薄膜 / パルス堆積法 / 光電子分光 / 界面

Research Abstract

By using single-crystal thin films prepared by pulsed laser deposition (PLD) method, we have studied the energy band structure, the epitaxial strain effect on their electronic structure, and the interfacial electronic structure of the perovskite-type transition-metal oxides.

Research Products

• [Journal Article] Dimensional-crossover-driven metal-insulator transition in SrVO_3 ultrathin films (2010)
  • Author(s): K. Yoshimatsu, T. Okabe, H. Kumigashira, S. Okamoto, S. Aizaki, A. Fujimori, M. Oshima
  • Journal Title: Phys.Rev.Lett. 104 Pages: 147601-1-4
• [Journal Article] Remote hole-doping of Mott insulators on the nanometer scale (2009)
  • Author(s): M. Takizawa, Y. Hotta, T. Susaki, Y. Ishida, H. Wadati, Y. Takata, K. Horiba, M. Matsunami, S. Shin, M. Yabashi, K. Tamasaku, Y. Nishino, T. Ishikawa, A. Fujimori, H. Y. Hwang
  • Journal Title: Phys.Rev.Lett. 102 Pages: 236401-1-4
• [Journal Article] Effects of electron-phonon coupling in angle-resolved photoemission spectra of Nb-doped SrTiO3 (2009)
  • Author(s): M. Takizawa, K. Maekawa, H. Wadati, T. Yoshida, A. Fujimori, H. Kumigashira, M. Oshima
  • Journal Title: Phys.Rev.B 79 Pages: 113103-1-4
• [Journal Article] Pressure-induced change in the electronic structure of epitaxially strained La_<1-x>Sr_xMnO_3 thin films (2009)
  • Author(s): K. Horiba, A. Maniwa, A. Chikamatsu, K. Yoshimatsu, H. Kumigashira, H. Wadati, A. Fujimori, S. Ueda, H. Yoshikawa, E. Ikenaga, J. J. Kim, K. Kobayashi, M. Oshima
  • Journal Title: Phys.Rev.B 80 Pages: 132406-1-4
• [Journal Article] rientation dependence of the Schottky barrier height forLa_<0.6>Sr_<0.4>MnO_3/SrTiO_3 heterojunctions (2009)
  • Author(s): M. Minohara, Y. Furukawa, R. Yasuhara, H. Kumigashira, M. Oshima
  • Journal Title: Appl.Phys.Lett. 94 Pages: 242106-1-3
• [Journal Article] Thickness dependent electronic structure of La_<0.6>Sr_<0.4>MnO_3 layer in SrTiO_3/La_<0.6>Sr_<0.4>MnO_3/SrTiO_3 heterostructures studied by hard x-ray photoemission spectroscopy (2009)
  • Author(s): K. Yoshimatsu, K. Horiba, H. Kumigashira, E. Ikenaga, M. Oshima
  • Journal Title: Appl.Phys.Lett. 94 Pages: 01-1-3
• [Journal Article] In-situ photoemission study of Pr_<1-x>Ca_xMnO_3 epitaxial thin films wit suppressed charge fluctuations (2008)
  • Author(s): H. Wadati, A. Maniwa, A. Chikamatsu, I. Ohkubo, H. Kumigashira, M. Oshima, A. Fujimori, M. Lippmaa, M. Kawasaki, H. Koinuma
  • Journal Title: Phys.Rev.Lett. 100 Pages: 026402-1-4
• [Journal Article] Interfacial electronic structure of SrTiO_3/SrRuO_3 heterojuctions studied by in situ photoemissionspectroscopy (2008)
  • Author(s): H. Kumigashira, M. Minohara, M. Takizawa, A. Fujimori, D. Toyota, I. Ohkubo, M. Oshima, M. Lippmaa, M. Kawasaki
  • Journal Title: Appl.Phys.Lett. 92 Pages: 122105-1-3
• [Journal Article] Origin of metallic states at heterointerface between band insulators LaAlO_3 and SrTiO_3 (2008)
  • Author(s): K. Yoshimatsu, R. Yasuhara, H. Kumigashira, M. Oshima
  • Journal Title: Phys.Rev.Lett. 101 Pages: 026802-1-4
• [Journal Article] Gradual disappearance of the Fermi surface near the metal-insulator transition in La_<1-x>Sr_xMnO_3 (2007)
  • Author(s): A. Chikamatsu, H. Wadati, H. Kumigashira, M. Oshima, A. Fujimori, M. Lippmaa, K. Ono, M. Kawasaki, H. Koinuma
  • Journal Title: Phys.Rev.B 76 Pages: 201103(R)-1-4
• [Presentation] In-situ Photoemission Studies on Oxide Heterostructures (2009)
  • Author(s): H. Kumigashira
  • Organizer: 2009 Villa Conference on Complex Oxide Heterostructures (VC-COH)
  • Place of Presentation: Ritz Carlton-St. Thomas
  • Year and Date: 20090900
• [Presentation] In-situ photoemission studies on oxide heterostructures (2009)
  • Author(s): H. Kumigashira
  • Organizer: 11-th International Conference on Electronic Spectroscopy and Structure (ICESS-11)
  • Place of Presentation: Nara
  • Year and Date: 2009-10-08
• [Presentation] Photoemission spectroscopy of oxide multilayers and nano-particles (2008)
  • Author(s): A. Fujimori
  • Organizer: Villa Conference on Complex Oxide Heterostructures (ViC-COH)
  • Place of Presentation: Orlando
  • Year and Date: 20081100
• [Presentation] Photoemission spectroscopy of complex oxide interfaces (2008)
  • Author(s): A. Fujimori
  • Organizer: 35th Conference on the Physics and Chemistry of Semiconductor Interfaces
  • Place of Presentation: Santa Fe, USA
  • Year and Date: 20080100
• [Presentation] Photoemission spectroscopy of interfaces in oxide mutilayers (2007)
  • Author(s): A. Fujimori
  • Organizer: 2007 CERC International Symposium-Highlights and Perspectives of Correlated Electron Systems
  • Place of Presentation: Akihabara
  • Year and Date: 20070500
• [Presentation] Photoemission spectroscopy of oxide interfaces (2007)
  • Author(s): A. Fujimori
  • Organizer: Materials Research Society 2007 Spring Meeting
  • Place of Presentation: San Fransisco
  • Year and Date: 20070400
• [Remarks] ホームページ
  • URL: http://wyvern.phys.s.u-tokyo.ac.jp/f/Research/interface/interface.htm