Current-induced and interaction-driven Dirac point drag of massless quasirelativistic fermions
Name
PhysRevB.93.235154.pdf
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117.54 KB
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Author(s)
Sodemann Villadiego, Inti A.
Date Issued
June 2016
Journal
Journal of Physical Chemistry B
Publisher
American Physical Society
Citation
Sodemann, Inti. "Current-induced and interaction-driven Dirac point drag of massless quasirelativistic fermions." Physical Review B 93, 235154 (June 2016): 1-4 © 2016 American Physical Society
Version
Final published version
Abstract
We study the quasiparticle properties of two-dimensional massless Dirac fermions when the many-body states possess a finite momentum density in the clean limit. The lack of Galilean invariance endows the many-body states at finite momentum density with qualitative differences from those of the system at rest. At finite carrier densities we demonstrate the appearance of a current-induced distortion of the pseudospin texture in momentum space that can be viewed as a drag of the Dirac point and the origin of which lies entirely in electron-electron interactions. We discuss the potential observation of this effect in graphene.
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.93.235154
