Effect of charge renormalization on the electric and thermoelectric transport along the vortex lattice of a Weyl superconductor
Lemut, G. and Pacholski, M. J. and Adagideli, İnanç and Beenakker, C. W. J. (2019) Effect of charge renormalization on the electric and thermoelectric transport along the vortex lattice of a Weyl superconductor. Physical Review B, 100 (3). ISSN 2469-9950 (Print) 2469-9969 (Online)
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Official URL: http://dx.doi.org/10.1103/PhysRevB.100.035417
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 = 1/2(Q(eff)(2)/h)(Phi/Phi(0))V between two normal-metal contacts at voltage difference V, with Phi the magnetic flux through the system, Phi(0) the superconducting flux quantum, and Q(eff) < 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.
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