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arXiv · cond-mat/9912253

Angle-dependent magnetothermal conductivity in d-wave superconductors

I. Vekhter·P. J. Hirschfeld
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Abstract

We analyse the behavior of the thermal conductivity, $κ(H)$, in the vortex state of a quasi-two-dimensional d-wave superconductor when both the heat current and the applied magnetic field are in the basal plane. At low temperature the effect of the field is accounted for in a semiclassical approximation, via a Doppler shift in the spectrum of the nodal quasiparticles. In that regime $κ(H)$ exhibits twofold oscillations as a function of the angle between the direction of the field in the plane and the direction of the heat current, in agreement with experiment.

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I. Vekhter, P. J. Hirschfeld. 1999-12-14. Angle-dependent magnetothermal conductivity in d-wave superconductors. https://doi.org/10.1016/s0921-4534(00)01417-9

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