Impurity-induced resonant state in a pseudogap, state of a high-Tc superconductor -: art. no. 054501

被引：38

作者：

Kruis, HV

Martin, I

Balatsky, AV

机构：

[1] Leiden Univ, Inst Lorentz, NL-2300 RA Leiden, Netherlands

[2] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA

来源：

PHYSICAL REVIEW B | 2001年 / 64卷 / 05期

关键词：

D O I：

10.1103/PhysRevB.64.054501

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We predict a resonance-impurity state generated by the substitution of one Cu atom with a nonmagnetic atom, such as Zn, in the pseudogap state of a high-T-c superconductor. The precise microscopic origin of the pseudogap is not important for this state to be formed, in particular this resonance will be present even in the absence of superconducting fluctuations in the normal state. In the presence of superconducting fluctuations, we predict the existence of a counterpart impurity peak on a symmetric bias. The nature of this impurity resonance is similar to the previously studied resonance in the d-wave superconducting state.

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页码：0545011 / 0545014

页数：4

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