Angle-dependent magnetothermal conductivity in d-wave superconductors

Abstract

We analyse the behavior of the thermal conductivity, $\kappa (H)$, 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 $\kappa (H)$ 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.

2 pages, submitted to proceedings of M2S-HTSC-VI (Houston)

References in corpus (2)

• Quasiparticle thermal conductivity in the vortex state of high-T${}_c$ cuprates
• Magnetic field effects on the density of states of orthorhombic superconductors

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• Nodal structure of quasi-2D superconductors probed by magnetic field
• Unconventional superconductors under rotating magnetic field I: density of states and specific heat
• Thermodynamics of d-wave superconductors in a magnetic field
• Unconventional superconductors under rotating magnetic field II: thermal transport
• Theory of thermal conductivity in extended-$s$ state superconductors: application to ferropnictides
• Field angle-dependent thermal conductivity in nodal superconuctors