Critical current in a granular superconductor
Critical current in a granular superconductor
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粒状超导体中的临界电流
DOI：
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发表时间：
1998
期刊：
影响因子：
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通讯作者：
V. Ignatjev
中科院分区：
文献类型：
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作者：
V. Ignatjev
本文提出了颗粒超导体中存在晶间接触和晶内缺陷时的超涡旋钉扎机制，用以描述临界电流密度和钉扎势随场的变化关系。计算结果与实验结果吻合较好。该模型描述了陶瓷超导体的峰值效应和逾渗机制。
The mechanism of hypervortex pinning in a granular superconductor at intergranular contacts and intragranular defects is proposed for describing the field dependence of the critical current density and pinning potential. The results are in good agreement with those obtained experimentally. The proposed model describes the peak effect and the percolation mechanism of conductivity in ceramic superconductors.