EPR SPECTRA OF THE HIGH Tc SUPERCONDUCTOR YBa_2Cu_3O_7

<正> INTRODUCTION. The research on a series of high T_c Y-Ba-Cu-O superconductors since its dxscovery has been found interesting. Preparations and structural studies concerning this field, as well as some spectroscopic work on the study of the superconductive mechanism have been reported. In this communication, we report the EPR studies of the superconductor YBa_2Cu_3O_7 both at room temperature and at liquid N_2 temperature.

EPR SPECTRA OF THE HIGH Tc SUPERCONDUCTOR YBa_2Cu_3O_7