Research Interest

1. Vortex States in High-T_c Superconductor
   • Phase transition and phase diagram in vortex states
   • Pinning of flux lines
   • Josephson flux
   
   
2. Mechanism of High-T_c Superconductivity : Study of Strongly Correlated Electron Systems
   • SO(5) theory
   • Superconductivity in spin-Peierls systems
   
   
3. Properties of Nano-scale Materials
   • Nano-scale magnetism
   • Carbon nanotubes
   
   
4. Magnetism
   • Ferrimagnet
   
   
5. Cobaltate superconductor