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Nonlocal Coulomb drag in Weyl semimetals

Baum, Yuval and Stern, Ady (2017) Nonlocal Coulomb drag in Weyl semimetals. Physical Review B, 95 (7). Art. No. 075141. ISSN 2469-9950. http://resolver.caltech.edu/CaltechAUTHORS:20170223-131325165

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Abstract

Nonlocality is one of the most striking signatures of the topological nature of Weyl semimetals. We propose to probe the nonlocality in these materials via a measurement of a magnetic-field-dependent Coulomb drag between two sheets of graphene which are separated by a three-dimensional slab of Weyl semimetal. We predict a mechanism of Coulomb drag, based on cyclotron orbits that are split between opposite surfaces of the semimetal. In the absence of impurity scattering between different Weyl nodes, this mechanism does not decay with the thickness of the semimetal.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1103/PhysRevB.95.075141DOIArticle
http://journals.aps.org/prb/abstract/10.1103/PhysRevB.95.075141PublisherArticle
Additional Information:© 2017 American Physical Society. (Received 29 November 2016; published 23 February 2017) We thank J. Eisenstein and Y. Oreg for useful discussions. We also acknowledge support from the European Research Council under the European Union’s Seventh Framework Program (Grant No. FP7/2007-2013)/ERC Project MUNATOP, the DFG (CRC/Transregio 183, Grant No. EI 519/7-1), Minerva Foundation, and the U.S.-Israel BSF. Y.B. is grateful for support from the Institute of Quantum Information and Matter.
Group:Institute for Quantum Information and Matter, IQIM
Funders:
Funding AgencyGrant Number
European Research Council (ERC)MUNATOP
Deutsche Forschungsgemeinschaft (DFG)EI 519/7-1
Minerva FoundationUNSPECIFIED
Binational Science Foundation (USA-Israel)UNSPECIFIED
Institute for Quantum Information and Matter (IQIM)UNSPECIFIED
Record Number:CaltechAUTHORS:20170223-131325165
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20170223-131325165
Official Citation:Nonlocal Coulomb drag in Weyl semimetals Yuval Baum and Ady Stern Phys. Rev. B 95, 075141
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:74501
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:24 Feb 2017 15:45
Last Modified:24 Feb 2017 15:45

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