Decoupled heat and charge rectification as many-body effect in quantum wires
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We show that for a quantum wire with a local asymmetric scattering potential the principal channels for charge and heat rectification decouple and renormalize differently under electron interactions, with heat rectification generally being more relevant. The polarization of the rectification results from quantum interference and is tunable through external gating. Furthermore, for spin-polarized or helical electrons and sufficiently strong interactions a regime can be obtained in which heat transport is strongly rectified but charge rectification is very weak.
Stevenson , C & Braunecker , B 2021 , ' Decoupled heat and charge rectification as many-body effect in quantum wires ' , Physical Review. B, Condensed matter and materials physics , vol. 103 , no. 11 , 115413 . https://doi.org/10.1103/PhysRevB.103.115413
Physical Review. B, Condensed matter and materials physics
Copyright © 2021 American Physical Society. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the author created accepted manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1103/PhysRevB.103.054425.
DescriptionFunding: C.S. acknowledges the support by the EPSRC under Grant No. EP/N509759/1.
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