Extrinsic thermoelectric response of coherent conductors
- URL: http://arxiv.org/abs/2107.06723v4
- Date: Thu, 2 Jun 2022 18:21:23 GMT
- Title: Extrinsic thermoelectric response of coherent conductors
- Authors: Rafael S\'anchez, Cosimo Gorini and Genevi\`eve Fleury
- Abstract summary: Coupling to the probe has the dual effect of allowing for the controlled local injection of heat currents into the system.
Considering a simple model for noninteracting electrons, we find a nonlocal thermoelectric response which is modulated by the position of the hot probe tip.
A separate investigation of the effects of dephasing and of quasielastic scattering gives further insights into the different mechanisms involved.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We investigate the thermoelectric response of a coherent conductor in contact
with a scanning probe. Coupling to the probe has the dual effect of allowing
for the controlled local injection of heat currents into the system and of
inducing interference patterns in the transport coefficients. This is
sufficient to generate a multiterminal thermoelectric effect even if the
conductor does not effectively break electron-hole symmetry and the tip injects
no charge. Considering a simple model for noninteracting electrons, we find a
nonlocal thermoelectric response which is modulated by the position of the hot
probe tip, and a nonreciprocal longitudinal response which leads to a
thermoelectric diode effect. A separate investigation of the effects of
dephasing and of quasielastic scattering gives further insights into the
different mechanisms involved.
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