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Quantum friction in two-dimensional topological materials

M. Belén Farias, Wilton J. M. Kort-Kamp, and Diego A. R. Dalvit
Phys. Rev. B 97, 161407(R) – Published 24 April 2018
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Abstract

We develop the theory of quantum friction in two-dimensional topological materials. The quantum drag force on a metallic nanoparticle moving above such systems is sensitive to the nontrivial topology of their electronic phases, shows a novel distance scaling law, and can be manipulated through doping or via the application of external fields. We use the developed framework to investigate quantum friction due to the quantum Hall effect in magnetic field biased graphene, and to topological phase transitions in the graphene family materials. It is shown that topologically nontrivial states in two-dimensional materials enable an increase of two orders of magnitude in the quantum drag force with respect to conventional neutral graphene systems.

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  • Received 31 October 2017

DOI:https://doi.org/10.1103/PhysRevB.97.161407

©2018 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied PhysicsGeneral PhysicsQuantum Information, Science & TechnologyAtomic, Molecular & OpticalParticles & Fields

Authors & Affiliations

M. Belén Farias1,2,3, Wilton J. M. Kort-Kamp2,3, and Diego A. R. Dalvit3

  • 1Departamento de Física, FCEyN, UBA, and IFIBA, CONICET, Pabellón 1, Ciudad Universitaria, 1428 Buenos Aires, Argentina
  • 2Center for Nonlinear Studies, MS B258, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
  • 3Theoretical Division, MS B213, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA

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Issue

Vol. 97, Iss. 16 — 15 April 2018

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