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Researchers detail


YOKOYAMA, Toshihiko

TEL: 0564-55-7345
Mail: yokoyama_at_ims.ac.jp (Please replace the "_at_" with @ )
Affiliation laboratory:
Location: Myoudaiji, Main Laboratory Bldg. Room320


Materials Molecular Science, Electronic Structure


1983  B.S. The University of Tokyo 
1985  M.S. The University of Tokyo 
1990  Ph.D. The University of Tokyo
1987  Research Associate, Hiroshima University
1993  Research Associate, The University of Tokyo      
1994  Lecturer, The University of Tokyo      
1996  Associate Professor, The University of Tokyo      
2002  Professor, Institute for Molecular Science      
2002  Professor, The Graduate University for Advanced Studies

Main research themes

Exploitation of Novel Spectroscopic Methods for Material and Surface Science
kewords X-Ray Absorption Spectroscopy, Surface & Thin Film Magnetism, Ambient Pressure Hard X-Ray Photoelectron Spectroscopy
PDF Annual Review : PDF

Selected Publications

  1. “Operando Observation of Sulfur Species Poisoning Polymer Electrolyte Fuel Cell Studied by Near Ambient Pressure Hard X‑ray Photoelectron Spectroscopy” L. Yu, Y. Takagi, T. Nakamura, T. Sakata, T. Uruga, M.Tada, Y. Iwasawa, S. Masaoka, and T. Yokoyama, J. Phys. Chem. C 123 , 603 (2019).
  2. “X-ray photoelectron spectroscopy under real ambient pressure conditions” Y. Takagi, T. Nakamura, L. Yu, S. Chaveanghong, O. Sekizawa, T. Sakata, T. Uruga, M. Tada, Y. Iwasawa and T. Yokoyama, Appl. Phys. Exp10, 076603 (2017).
  3. “Dynamics of Photoelectrons and Structural Changes of Tungsten Trioxide Observed by Femtosecond Transient XAFS” Y. Uemura, D. Kido, Y. Wakisaka, H. Uehara, T. Ohba, Y. Niwa, S. Nozawa, T. Sato, K. Ichiyanagi, R. Fukaya, S. Adachi, T. Katayama, T. Togashi, S. Owada, K. Ogawa, M. Yabashi, K. Hatada, S. Takakusagi, T. Yokoyama, B. Ohtani, and K. Asakura, Angew. Chem. Int. Ed55, 1364 (2016).
  4. “Anharmonicity and Quantum Effects in Thermal Expansion of an Invar Alloy” T. Yokoyama and K. Eguchi, Phys. Rev. Lett. 107, 065901 (2011).
  5. “Magnetic circular dichroism near the Fermi level” T. Nakagawa and T. Yokoyama, Phys. Rev. Lett96, 237402 (2006).