Hall Drag and Magnetodrag in Graphene
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Song-2013-Hall drag and.pdf
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Author(s)
Song, Justin Chien Wen
Levitov, Leonid
Date Issued
September 2013
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Song, Justin C. W., and Leonid S. Levitov. “Hall Drag and Magnetodrag in Graphene.” Physical Review Letters 111, no. 12 (September 2013). © 2013 American Physical Society
Version
Final published version
Abstract
Massless Dirac fermions in graphene at charge neutrality form a strongly interacting system in which both charged and neutral (energy) modes play an important role. These modes are essentially decoupled in the absence of a magnetic field, but become strongly coupled when the field is applied. We show that this regime is characterized by strong magnetodrag and Hall drag, originating from long-range energy currents and spatial temperature gradients. The energy-driven effects arise in a wide temperature range, and feature an unusually strong dependence on field and carrier density. We argue that this mechanism accounts for the recently observed giant magnetodrag and Hall drag occurring at classically weak fields.
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/PhysRevLett.111.126601
