YBa_2Cu_3O_{6.6}中的赝能隙和非公度磁涨落
超导电性
2016-03-23 v1
摘要
使用非极化非弹性中子散射研究了一个表征良好的单晶YBa_2Cu_3O_{6.6}(T_c=62.7 K)的动力学磁化率χ''(q,ω)的温度和波矢依赖性。我们发现,在远高于T_c的温度下,自旋涨落谱中打开了赝能隙。我们推测低频非公度涨落的出现与赝能隙的打开有关。在测量误差范围内,在超导态中发现了自旋涨落谱中的能隙。
关键词
引用
@article{arxiv.cond-mat/9712311,
title = {Pseudogap and incommensurate magnetic fluctuations in YBa_2Cu_3O_{6. 6}},
author = {P. Dai and H. A. Mook and F. Dogan},
journal= {arXiv preprint arXiv:cond-mat/9712311},
year = {2016}
}
备注
6 pages, 3 ps figs, Proceedings of ICNS, Physica B, to be published