Nernst effect and dimensionality in the quantum limit
نویسندگان
چکیده
منابع مشابه
Quantum Nernst Effect
It is theoretically predicted that the Nernst coefficient is strongly suppressed and the thermal conductance is quantized in the quantum Hall regime of the twodimensional electron gas. The Nernst effect is the induction of a thermomagnetic electromotive force in the y direction under a temperature bias in the x direction and a magnetic field in the z direction. The quantum nature of the Nernst ...
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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 ...
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ژورنال
عنوان ژورنال: Nature Physics
سال: 2009
ISSN: 1745-2473,1745-2481
DOI: 10.1038/nphys1437