超导Ba(Fe1-xCox)2As2双晶中晶界的弱连接行为
超导电性
2015-05-13 v3 材料科学
摘要
我们表明，尽管Ba(Fe1-xCox)2As2具有低各向异性、强涡旋钉扎以及接近上临界场Hc2的高不可逆场Hirr，但薄膜Ba(Fe1-xCox)2As2双晶中[001]倾斜晶界(GBs)的临界电流密度Jgb被强烈抑制，类似于高温铜氧化物超导体。我们的结果表明，由于竞争序、低载流子密度和非常规配对对称性，弱连接晶界是铜氧化物和铁基超导体的共同特征。
引用
@article{arxiv.0907.3741,
title = {Weak-link behavior of grain boundaries in superconducting Ba(Fe1-xCox)2As2 bicrystals},
author = {S. Lee and J. Jiang and J. D. Weiss and C. M. Folkman and C. W. Bark and C. Tarantini and A. Xu and D. Abraimov and A. Polyanskii and C. T. Nelson and Y. Zhang and S. H. Baek and H. W. Jang and A. Yamamoto and F. Kametani and X. Q. Pan and E. E. Hellstrom and A. Gurevich and C. B. Eom and D. C. Larbalestier},
journal= {arXiv preprint arXiv:0907.3741},
year = {2015}
}
备注
To appear in Applied Physics Letters