RESEARCH

Magnetism and Superconductivity in strongly correlated electron systems

For understanding the fundamental properties of real materials, such as magnetism and superconductivity, it is important to throw light on the effects of the electron-electron interactions. The condensed matter theory, which is the theoretical study on the materials, essentially consist of the quantum mechanical and statistical mechanical studies of the many-electron systems. Especially, the strongly correlated electron systems like heavy fermion systems and high Tc superconductor, where the repulsive interaction between electrons are noticeable, become the recent main concerns in condensed matter physics. In our laboratory, we are now studying the following topics; 

• Microscopic theory of the heave fermi on systems
• Theory of the High Tc super-conductivity
• Quantum phase transition in 2-dimensional spin systems
• Quantum critical phenomena in coupled spin and orbital systems