Strong Thermal and Electrostatic Manipulation of the Casimir Force in Graphene Multilayers

Chahine Abbas, Brahim Guizal, and Mauro Antezza
Phys. Rev. Lett. 118, 126101 – Published 23 March 2017
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Abstract

We show that graphene-dielectric multilayers give rise to an unusual tunability of the Casimir-Lifshitz forces and allow to easily realize completely different regimes within the same structure. Concerning thermal effects, graphene-dielectric multilayers take advantage of the anomalous features predicted for isolated suspended graphene sheets, even though they are considerably affected by the presence of the dielectric substrate. They can also achieve the anomalous nonmonotonic thermal metallic behavior by increasing the graphene sheets density and their Fermi level. In addition to a strong thermal modulation occurring at short separations, in a region where the force is orders of magnitude larger than the one occurring at large distances, the force can be also adjusted by varying the number of graphene layers as well as their Fermi levels, allowing for relevant force amplifications which can be tuned, very rapidly and in situ, by simply applying an electric potential. Our predictions can be relevant for both Casimir experiments and micro- or nanoelectromechanical systems and in new devices for technological applications.

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  • Received 23 December 2016

DOI:https://doi.org/10.1103/PhysRevLett.118.126101

© 2017 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied PhysicsGeneral Physics

Authors & Affiliations

Chahine Abbas1, Brahim Guizal1, and Mauro Antezza1,2,*

  • 1Laboratoire Charles Coulomb (L2C), UMR 5221 CNRS-Université de Montpellier, F-34095 Montpellier, France
  • 2Institut Universitaire de France, 1 rue Descartes, F-75231 Paris, France

  • *Corresponding author. mauro.antezza@umontpellier.fr

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Issue

Vol. 118, Iss. 12 — 24 March 2017

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