d-density wave state in an externalmagnetic field
نویسنده
چکیده
We present a study of the electrical and thermal conductivities of the d-density wave (DDW) state in an external magnetic field B in the low temperature regime and in the presence of impurities. We show that in the zero temperature limit, T → 0, the Wiedemann-Franz (WF) law remains intact. For finite T the WF law violation is possible and it is enhanced by the external field.
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