一级涡旋晶格熔化的特征:熵和磁化强度的跳变
超导电性
2009-10-30 v2
摘要
我们推导了表征通量线晶格一级熔化转变的熵和磁化强度跳变的表达式。在我们的分析中,我们考虑了朗道参数的温度依赖性,并利用了由电磁相互作用和约瑟夫森相互作用的相对重要性所确定的熔化线的正确形状。结果与各向异性YBaCuO和层状BiSrCaCuO材料的实验吻合良好,并重申了伦敦模型的有效性。
引用
@article{arxiv.cond-mat/9705220,
title = {Characteristics of First-Order Vortex Lattice Melting: Jumps in Entropy and Magnetization},
author = {M. J. W. Dodgson and V. B. Geshkenbein and H. Nordborg and G. Blatter},
journal= {arXiv preprint arXiv:cond-mat/9705220},
year = {2009}
}
备注
4 pages. We have restructured the paper to emphasize that in the London scaling regime (appropriate for YBCO) our results are essentially exact. We have also emphasized that a major controversy over the relevance of the London model to describe VL melting has been settled by this work