Zn掺杂LaSrCuO中的金属非超导相与d波超导性
超导电性
2007-05-23 v2
摘要
对LaSrCuO薄膜进行电阻率、磁阻和渗透深度测量，掺杂的Zn浓度可达12at.%。结果表明，反平方渗透深度的平方温度依赖式表明d波超导性不受掺杂的影响。超导性的抑制导致一种金属非超导相的出现，这正如预期的那样，与自旋涨落相关的配对机制有关。金属-绝缘体相变发生在kFl~1的附近，似乎是由无序引起的，而掺杂对载流子浓度没有影响。
引用
@article{arxiv.cond-mat/9911149,
title = {Metallic nonsuperconducting phase and d-wave superconductivity in Zn-substituted LaSrCuO},
author = {K. Karpinska and Marta Z. Cieplak and S. Guha and A. Malinowski and T. Skoskiewicz and W. Plesiewicz and M. Berkowski and B. Boyce and Thomas R. Lemberger and P. Lindenfeld},
journal= {arXiv preprint arXiv:cond-mat/9911149},
year = {2007}
}
备注
4 pages,4 figures, to appear in PRL Replacement of the original paper incorporates minor revisions suggested by the referee