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Switching Casimir forces with Phase Change Materials

Authors
  • Torricelli, G.
  • van Zwol, P. J.
  • Shpak, O.
  • Binns, C.
  • Palasantzas, G.
  • Svetovoy, B. J. Kooi V. B.
  • Wuttig, M.
Type
Preprint
Publication Date
Jun 22, 2010
Submission Date
Jun 21, 2010
Identifiers
DOI: 10.1103/PhysRevA.82.010101
Source
arXiv
License
Yellow
External links

Abstract

We demonstrate here a controllable variation in the Casimir force. Changes in the force of up to 20% at separations of ~100 nm between Au and AgInSbTe (AIST) surfaces were achieved upon crystallization of an amorphous sample of AIST. This material is well known for its structural transformation, which produces a significant change in the optical properties and is exploited in optical data storage systems. The finding paves the way to the control of forces in nanosystems, such as micro- or nanoswitches by stimulating the phase change transition via localized heat sources.

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