Effects of phase transitions in devices actuated by the electromagnetic vacuum force

Details Effects of phase transitions in devices actuated by the electromagnetic vacuum force Effects of phase transitions in devices actuated by the electromagnetic vacuum force

2008-09-24

arxiv.org/abs/0809.4227v1

Europhys. Lett. 84 (2008) 11002

Physics

Quantum Physics

Scientific paper

10.1209/0295-5075/84/11002

We study the influence of the electromagnetic vacuum force on the behaviour of a model device based on materials, like germanium tellurides, that undergo fast and reversible metal-insulator transitions on passing from the crystalline to the amorphous phase. The calculations are performed at finite temperature and fully accounting for the behaviour of the material dielectric functions. The results show that the transition can be exploited to extend the distance and energy ranges under which the device can be operated without undergoing stiction phenomena. We discuss the approximation involved in adopting the Casimir expression in simulating nano- and micro- devices at finite temperature.

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