μSR study on superconductivity and magnetism in high-Tc superconducting oxides

Since the discovery of high-Tc superconductivity in copper oxides, muon-spin-relaxation (μSR) measurements have made great contributions to the understanding of the high-Tc superconductivity. In this paper, several selected μSR results on the superconductivity and magnetism in high-Tc superconducting copper oxides obtained these two decades are reviewed. Moreover, expectation to J-PARC is described.