Eur. Phys. J. B (2014) 87: 185
https://doi.org/10.1140/epjb/e2014-50072-x

Regular Article

Quantum friction controlled by plasmons between graphene sheets

¹ Center for Nano and Micro Mechanics, Tsinghua University, Beijing 100084, P.R. China
² Department of Physics, Nanchang University, Nanchang 330031, P.R. China
³ Institute for Advanced Study, Nanchang University, Nanchang 330031, P.R. China

^a e-mail: tbwang@ncu.edu.cn

Received: 31 January 2014
Received in final form: 13 May 2014
Published online: 11 August 2014

Abstract

We theoretically study quantum friction between two infinite graphene sheets, which is controlled by plasmons excited at the interfaces of graphenes and dielectrics. In near-field regime, quantum friction can be enhanced due to the coupling of plasmons between two graphene sheets. Dependences of friction coefficient on distance, chemical potential of graphene, temperature of environment, and dielectric constant of substrate have been investigated in detail. Friction coefficient can be increased by increasing temperature or dielectric constants of substrates, and can be reduced by increasing distance or chemical potential.