Ⅰ. INTRODUCTION Recendy, the research on oxide superconductor has achieved tremendous progress. New records of critical temperature were reported. In this work, the resistivity of Ba-Y-Cu oxide supercondutor and its ...Ⅰ. INTRODUCTION Recendy, the research on oxide superconductor has achieved tremendous progress. New records of critical temperature were reported. In this work, the resistivity of Ba-Y-Cu oxide supercondutor and its density of critical current as a function of temperature are measured by the method of persistent current.展开更多
文摘Ⅰ. INTRODUCTION Recendy, the research on oxide superconductor has achieved tremendous progress. New records of critical temperature were reported. In this work, the resistivity of Ba-Y-Cu oxide supercondutor and its density of critical current as a function of temperature are measured by the method of persistent current.