Volume 96, Number 1, October 2011
|Number of page(s)||6|
|Section||Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics|
|Published online||20 September 2011|
Tailoring the thermal Casimir force with graphene
MESA + Institute for Nanotechnology, University of Twente - PO 217, 7500 AE Enschede, The Netherlands, EU
2 University of Southampton - Highfield, Southampton, SO17 1BJ, UK, EU
3 FRIAS, University of Freiburg - 79104 Freiburg, Germany, EU
4 School of Materials Science, Advanced Institute of Science and Technology (JAIST) - Ishikawa, 923-1292 Japan
Accepted: 19 August 2011
The Casimir interaction is omnipresent source of forces at small separations between bodies, which is difficult to change by varying external conditions. Here we show that graphene interacting with a metal can have the best known force contrast to the temperature and the Fermi level variations. In the distance range 50–300 nm the force is measurable and can vary a few times for graphene with a bandgap much larger than the temperature. In this distance range the main part of the force is due to the thermal fluctuations. We discuss also graphene on a dielectric membrane as a technologically robust configuration.
PACS: 42.50.Lc – Quantum fluctuations, quantum noise, and quantum jumps / 12.20.Ds – Specific calculations / 78.67.-n – Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures
© EPLA, 2011
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