We study nonlocal thermoelectricity in a superconducting wire subject to spin-orbit coupling and a magnetic field with a relative orientation θ between them. We calculate the current flowing in a normal probe attached to the bulk of a superconducting wire, as a result of a temperature difference applied at the ends of the wire. We focus on the linear response regime, corresponding to a small temperature bias. We find that the nonlocal thermoelectric response is strongly dependent on the angle θ and occurs in ranges which correspond to the emergence of Bogoliubov-Fermi points in the energy spectrum of the superconducting wire.

Nonlocal thermoelectricity in quantum wires as a signature of Bogoliubov-Fermi points

Alessandro Braggio;Fabio Taddei;
2024

Abstract

We study nonlocal thermoelectricity in a superconducting wire subject to spin-orbit coupling and a magnetic field with a relative orientation θ between them. We calculate the current flowing in a normal probe attached to the bulk of a superconducting wire, as a result of a temperature difference applied at the ends of the wire. We focus on the linear response regime, corresponding to a small temperature bias. We find that the nonlocal thermoelectric response is strongly dependent on the angle θ and occurs in ranges which correspond to the emergence of Bogoliubov-Fermi points in the energy spectrum of the superconducting wire.
2024
Istituto Nanoscienze - NANO
Andreev reflections, Ballistic transport, Mesoscopics, Spin-orbit couplings, Thermoelectrics effects, Topological Materials, Topological superconductors, Transport phenomena
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.14243/510569
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