Delocalized Fermions in Underdoped Cuprate Superconductors，成果详细信息-中国科技论文在线

李世燕

39浏览
0点赞
0收藏
0分享
35下载
0评论
引用

期刊论文

Delocalized Fermions in Underdoped Cuprate Superconductors

李世燕， Mike Sutherland ，， * S.Y. Li ， D. G. Hawthorn ， † R.W. Hill ， ‡ F. Ronning ， § M. A. Tanatar ， ‖ J. Paglione ， ¶ H. Zhang ， Louis Taillefer ， J. DeBenedictis ， Ruixing Liang ， D. A. Bonn ， and W. N. Hardy

PHYSICAL REVIEW LETTERS prl 94,147004(2005)147004-1-147004-4，-0001，（）：

URL:

摘要/描述

Low-temperature heat transport was used to investigate the ground state of high-purity single crystals of the lightly doped cuprate a2Cu3O6:33. Samples were measured with doping concentrations on either side of the superconducting phase boundary. We report the observation of delocalized fermionic excitations at zero energy in the nonsuperconducting state, which shows that the ground state of underdoped cuprates is a thermal metal. Its low-energy spectrum appears to be similar to that of the d-wave superconductor, i.e., nodal. The insulating ground state observed in underdoped La2-xSrxCuO4 is attributed to the competing spin-density-wave order.

关键词:

问答

暂无问题，成为第一个提问者

我要提问全部问题

【免责声明】以下全部内容由[李世燕]上传于[2009年12月21日 18时27分12秒]，版权归原创者所有。本文仅代表作者本人观点，与本网站无关。本网站对文中陈述、观点判断保持中立，不对所包含内容的准确性、可靠性或完整性提供任何明示或暗示的保证。请读者仅作参考，并请自行承担全部责任。

我要评论

全部评论 共 0 条

本学者其他成果

同领域成果