Hitoshi Kawaji

Profile
1989-1993  Assist. Professor, Research Laboratory of
                  Engineering Materials, Tokyo Institute of
                  Technology
1993-1997  Assoc. Professor, Department of Applied
                  Chemistry, Hiroshima Univ.
1997-2011  Assoc. Professor, Materials and Structures
                  Laboratory, Tokyo Institute of Technology
2011-2016  Professor, Materials and Structures Laboratory,
                  Tokyo Institute of Technology
2016-         Professor, IIR, Tokyo Institute of Technology

Field of Specialization
Solid State Physics/Chemistry , Materials Science

Laboratory for Materials and Structures(IIR, Tokyo Tech)

http://www.msl.titech.ac.jp/~kawaji/
kawaji@msl.titech.ac.jp

Research Hub Group:Materials and Devices international hub group

Research Highlights

  • Two-Dimensional Superconductivity at Monatomic Bi2-Square Net in Layered Y2O2Bi
  • Persistence of Ferroelectricity in BaTiO3 through the Insulator-Metal Transition
  • Superconductivity at 25.5 K in Electron-Doped Layered Hafnium Nitride
  • Superconductivity in the Silicon Clathrate Compound

Press

  • August 2016
    Discovery of the superconductivity at Monatomic Bi2-Square Net in Layered Y2O2Bi

Selected Awards

  • 2005
    IKEDA award

Selected Publications

  • Two-Dimensional Superconductivity Emerged at Monatomic Bi2-Square Net in Layered Y2O2Bi via Oxygen Incorporation, R. Sei, S. Kotani, T. Fukumura, H. Kawaji, T. Hasegawa, J. Am. Chem. Soc. 138, 11085-11088 (2016).
  • Persistence of Ferroelectricity in BaTiO3 through the Insulator-Metal Transition, T. Kolodiazhnyi, M. Tachibana, H. Kawaji, J. Hwang, E. Takayama-Murimachi, Phys. Rev. Lett. 104, 147602 (2010).
  • Specific-heat Anomaly Caused by Ferroelectric Nanoregions in Pb(Mg1/3Nb2/3)O3 and Pb(Mg1/3Ta2/3)O3 Relaxors, Y. Moriya, H. Kawaji, T. Tojo and T. Atake, Phys. Rev. Lett. 90(20), 205901(1-4) (2003).
  • Superconductivity at 25.5 K in Electron-Doped Layered Hafnium Nitride, S.Yamanaka, K. Hotehama and H. Kawaji, Nature 392, 580-582 (1998).
  • Superconductivity in the Silicon Clathrate Compound (Na,Ba)xSi46, H. Kawaji, H. Horie, S. Yamanaka and M. Ishikawa, Phys. Rev. Lett. 74, 1427-1429 (1995).