Comment on "Signatures of Surface States in Bismuth at High Magnetic Fields"
arXiv:0910.1256 · doi:10.1103/PhysRevLett.104.059705
Abstract
Nernst effect is the transverse electric field due to a longitudinal thermal gradient in presence of magnetic field. Its magnitude was recently studied up to 33 T in a bismuth single crystal with a magnetic field oriented along the trigonal axis . In addition to quantum oscillations of the Nernst response, a rich structure with several additional peaks was also detected when the magnetic field exceeded the quantum limit, which is of the order of 10 T in this configuration. The origin of these high-field Nernst anomalies is a subject of ongoing research. Very recently, Seradjeh, Wu, and Phillips have suggested that a surface state can give rise to these anomalies. This proposal does not resist a critical examination.
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References in corpus (6)
- Thermoelectric and Magnetothermoelectric Transport Measurements of Graphene
- The Nernst effect and the boundaries of the Fermi liquid picture
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- Nernst effect and dimensionality in the quantum limit
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