Spatial variation of d-density-wave order in the presence of impurities -: art. no. 224513

被引：15

作者：

Ghosal, A ^{[1
]}

Kee, HY

机构：

[1] McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada

[2] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada

来源：

PHYSICAL REVIEW B | 2004年 / 69卷 / 22期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1103/PhysRevB.69.224513

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Effect of finite density of nonmagnetic impurities on a coexisting phase of d-density-wave (DDW) order and d-wave-superconducting (DSC) order is studied using Bogoliubov-de Gennes (BdG) method. The spatial variation of the inhomogeneous DDW order due to impurities has a strong correlation with that of density, which is very different from that of DSC order. The length scale associated with DDW is of the order of a few lattice spacing, and the nontrivial inhomogeneities are shown to make DDW order much more robust to the repulsive potential, while DSC order becomes very sensitive to them. The effect of disorder on the density of states is also discussed.

引用

页码：224513 / 1

页数：6

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