多晶Pr_{x}Y_{1-x}Ba_2Cu_3O_7中晶界约瑟夫森网络异常强的相干响应
超导电性
2010-08-30 v1
摘要
通过将高灵敏度的自制交流磁化率技术应用于Pr_{x}Y_{1-x}Ba_2Cu_3O_7多晶样品(其中x=0.0, 0.1和0.3)，我们观察到了交流磁化率实部非常尖锐的夫琅禾费型低场周期振荡，这归因于约瑟夫森涡旋穿透了我们样品中晶界约瑟夫森网络的晶粒间区域。假设单结接触面积的洛伦兹型分布，我们能够成功拟合实验数据。
引用
@article{arxiv.0908.2108,
title = {Unusually strong coherent response from grain-boundary Josephson network in polycrystalline Pr_{x}Y_{1-x}Ba_2Cu_3O_7},
author = {V. A. G. Rivera and S. Sergeenkov and C. Stari and L. Jr. Cichetto and C. A. Cardoso and E. Marega and F. M. Araujo-Moreira},
journal= {arXiv preprint arXiv:0908.2108},
year = {2010}
}
备注
Accepted for publication in JETP Letters