Thermal plasmon resonantly enhances electron scattering in Dirac/Weyl semimetals
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PhysRevB.98.041109.pdf
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263.85 KB
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Author(s)
Kozii, Vladyslav
Fu, Liang
Date Issued
July 2018
Journal
Physical Review B
Publisher
American Physical Society
Citation
Kozii, Vladyslav and Fu, Liang. "Thermal plasmon resonantly enhances electron scattering in Dirac/Weyl semimetals." Physical Review B 98, 4 (July 2018): 041109(R) © 2018 American Physical Society
Version
Final published version
Abstract
We study the inelastic scattering rate due to the Coulomb interaction in three-dimensional Dirac/Weyl semimetals at finite temperature. We show that the perturbation theory diverges because of the long-range nature of the interaction, hence, thermally induced screening must be taken into account. We demonstrate that the scattering rate has a nonmonotonic energy dependence with a sharp peak owing to the resonant decay into thermal plasmons. We also consider the Hubbard interaction for comparison. We show that, in contrast to the Coulomb case, it can be well described by the second-order perturbation theory in a wide energy range.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevB.98.041109
