Transport properties in the d-density wave state:: Wiedemann-Franz Law -: art. no. 033104

被引：28

作者：

Kim, W ^{[1
]}

Carbotte, JP ^{[1
]}

机构：

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

来源：

PHYSICAL REVIEW B | 2002年 / 66卷 / 03期

关键词：

D O I：

10.1103/PhysRevB.66.033104

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study the Wiedemann-Franz (WF) law in the d-density wave (DDW) model. Even though the opening of the DDW gap (W-0) profoundly modifies the electronic density of states and makes it dependent on energy, the value of the WF ratio at zero temperature (T=0) remains unchanged. However, neither electrical nor thermal conductivity display universal behavior. For finite temperature, with T greater than the value of the impurity scattering rate at zero frequency gamma(0), i.e., gamma(0)<T<<W-0, the usual WF ratio is obtained only in the weak scattering limit. For strong scattering there are large violations of the WF Law.

引用

页码：1 / 4

页数：4

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