Nernst and Ettingshausen effects in gapped quantum materials
نویسندگان
چکیده
We investigate whether there could exist topological invariants of gapped 2D materials related to dissipationless thermoelectric transport at low temperatures. give both macroscopic and microscopic arguments showing that coefficients vanish in the limit zero temperature thus arise only from electric Hall conductance thermal conductance. Our apply systems with arbitrarily strong interactions. also show is no analog Thouless pump for entropy.
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ژورنال
عنوان ژورنال: Physical review
سال: 2021
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physrevb.103.235101