高温超导体临界电流的自场效应  

SELF-FIELD EFFECT OF CRITICAL CURRENT OF HIGH TEMPERATURE SUPERCONDUCTORS

作　　者：曾朝阳[1] 丁世英[1] 史可信[1] 施智祥[1] 

机构地区：[1]南京大学物理系,南京210008

出　　处：《低温物理学报》1993年第1期39-43,共5页Low Temperature Physical Letters

摘　　要：考虑临界电流的自场效应,利用自洽方法求解了无限大超导薄板的临界态方程,得到了板的平均临界电流密度的函数表达式,分析了外加磁场和样品尺寸对自场效应的影响,并就平均临界电流密度的尺寸效应进行了讨论。The critical state equation for an infinite superconductor slab was resolved by self-consistent method , while the self-field effect of critical current was taken into account. Functional expression for average critical current density of the slab was gained. The dependence of self-field effect on magnetic field and sample dimension was analysed. Dimension effect of average critical current density was also discussed.

关 键 词：超导体 临界电流 自场效应 磁场 

分 类 号：O511.1[理学—低温物理]