【摘要】 用Y₁Ba₂Cu₃O_7-8块状材料,制作了外观为“大桥”形式的约,瑟夫逊器件。观察了液氮温度为77K时的量子衍射图形和交流约瑟夫逊效应,由量子衍射图形推测这种器件的类型不属微桥结。更多还原

【Abstract】 Looking like large bridge in appearance, a Josephson device have been made ofbulk Y-Ba-Cu-O material. The magnetic field dependence of the critical current pat-ten and ac Josephson effect have been observed at 77K. From the magnetic fielddependence of the critical current patten, One may infer that this junction is not amicro-bridge essentially.更多还原