Quantum Nernst effect in a bismuth single crystal
classification
❄️ cond-mat.mes-hall
cond-mat.mtrl-sci
keywords
nernstbismuthcrystaleffectsinglecoefficientdimensionsquantum
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We report a theoretical calculation explaining the quantum Nernst effect observed experimentally in a bismuth single crystal. Generalizing the edge-current picture in two dimensions, we show that the peaks of the Nernst coefficient survive in three dimensions due to a van Hove singularity. We also evaluate the phonon-drag effect on the Nernst coefficient numerically. Our result agrees with the experimental result for a bismuth single crystal.
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