Hitoshi Kawaji

Materials/Devices

Hitoshi Kawaji

Professor

Solid State PhysicsChemistryMaterials Science

Research Projects

  • 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

Topics

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

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
2005

IKEDA award
1995

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).
1998

Superconductivity at 25.5 K in Electron-Doped Layered Hafnium Nitride, S.Yamanaka, K. Hotehama and H. Kawaji, Nature 392, 580-582 (1998).
2003

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).
2010

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).
2016

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).