Transport properties in the d-density wave state: Wiedemann-Franz law

Details Transport properties in the d-density wave state: Wiedemann-Franz law Transport properties in the d-density wave state: Wiedemann-Franz law

2002-02-27

arxiv.org/abs/cond-mat/0202514v1

Physics

Condensed Matter

Superconductivity

1 figure

Scientific paper

10.1103/PhysRevB.66.033104

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)

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