YBCO薄膜中弯曲和倾斜晶界增强的电流流动
超导电性
2007-06-13 v1
摘要
晶界（GBs）已被证明会限制YBa2Cu3O7（YBCO）涂层导体中的临界电流密度Jc。这里，我们使用输运测量和扫描霍尔探针显微镜结合电流重构来证明，GB几何形状，例如在金属有机沉积（MOD）在轧制辅助双轴织构基底（RABiTS）上生长的薄膜中观察到的面内弯曲，可导致更高的GB Jc。我们观察到电流诱导的磁通进入这种涂层导体，然后通过对具有与施加电流成各种角度的单个直GB的薄膜成像来模拟其行为。
引用
@article{arxiv.cond-mat/0701047,
title = {Enhanced current flow through meandering and tilted grain boundaries in YBCO films},
author = {Rafael B. Dinner and Kathryn A. Moler and D. Matthew Feldmann and M. R. Beasley},
journal= {arXiv preprint arXiv:cond-mat/0701047},
year = {2007}
}
备注
3 pages, 3 figures. For submission to Applied Physics Letters. Movies and higher resolution figures at http://www.stanford.edu/group/moler/rdinner/