Solid state physics investigate properties of materials such as electrical conduction and magnetism. In some interesting materials, electron correlations play an important role in determining the physical properties of these compounds, such as exotic superconductors and unusual magnetic materials in strongly correlated electrons system. Our main research activities are the experimental investigation of Superconductivity and Magnetism utilizing the nuclear magnetic resonance (NMR) technique to find the mechanisms of electronic properties from the microscopic points of view.