Effect of incoherent scattering on three-terminal quantum Hall thermoelectrics
arXiv:1507.00162 · doi:10.1016/j.physe.2015.09.004
Abstract
A three-terminal conductor presents peculiar thermoelectric and thermal properties in the quantum Hall regime: it can behave as a symmetric rectifier and as an ideal thermal diode. These properties rely on the coherent propagation along chiral edge channels. We investigate the effect of breaking the coherent propagation by the introduction of a probe terminal. It is shown that chiral effects not only survive the presence of incoherence but they can even improve the thermoelectric performance in the totally incoherent regime.
7 pages, 5 figures. Contribution to the Physica E special issue on "Frontiers in quantum electronic transport" - in memory of Markus Buttiker
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