Effect of charge renormalization on the electric and thermoelectric transport along the vortex lattice of a Weyl superconductor

G. Lemut; M. J. Pacholski; İ. Adagideli; C. W. J. Beenakker

doi:10.1103/PhysRevB.100.035417

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Effect of charge renormalization on the electric and thermoelectric transport along the vortex lattice of a Weyl superconductor

G. Lemut, M. J. Pacholski, İ. Adagideli, C. W. J. Beenakker

DOI 10.1103/PhysRevB.100.035417 · Physical Review B

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Abstract

Building on the discovery that a Weyl superconductor in a magnetic field supports chiral Landau-level motion along the vortex lines, we investigate its transport properties out of equilibrium. We show that the vortex lattice carries an electric current I=12(Qeff2/h)(Φ/Φ0)V between two normal-metal contacts at voltage difference V, with Φ the magnetic flux through the system, Φ0 the superconducting flux quantum, and Qeff<e the renormalized charge of the Weyl fermions in the superconducting Landau level. Because the charge renormalization is energy dependent, a nonzero thermoelectric coefficient appears even in the absence of energy-dependent scattering processes.