We experimentally study the unusual quantum phenomena of "superconductivity" and "charge ordered state" in strongly correlated materials, by using "microwave" technique.

The followings are our current issues;

1. Study of Macroscopic Quantum Tunneling (MQT) in Intrinsic Josephson Junctions (IJJs) of High-Tc Cuprate Superconductors
   Publication on this issue

   A stack of IJJs in BSCCO syngle crystal

   I-V characteristics of IJJs in BSCCO

2. Study of complex microwave conductivity using various microwave resonators
   Publication on this issue

   Cylindrical cavity resonator

   Spatial distribution of microwave magnetic field of TE011 mode

   Spatial distribution of microwave electric field of TE011 mode