Spin-dependent heat and thermoelectric currents in a Rashba ring coupled to a photon cavity

Abstract

Spin-dependent heat and thermoelectric currents in a quantum ring with Rashba spin-orbit interaction placed in a photon cavity are theoretically calculated. The quantum ring is coupled to two external leads with different temperatures. In a resonant regime, with the ring structure in resonance with the photon field, the heat and the thermoelectric currents can be controlled by the Rashba spin-orbit interaction. The heat current is suppressed in the presence of the photon field due to contribution of the two-electron and photon replica states to the transport while the thermoelectric current is not sensitive to changes in parameters of the photon field. Our study opens a possibility to use the proposed interferometric device as a tunable heat current generator in the cavity photon field.

RevTeX, 16 pages with 14 eps-figures included

References in corpus (3)

• Strongly nonlinear thermovoltage and heat dissipation in interacting quantum dots
• Enhancing thermoelectric properties of graphene quantum rings
• Time-dependent magnetotransport in an interacting double quantum wire with window coupling

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