Switching Casimir forces with Phase Change Materials

Details Switching Casimir forces with Phase Change Materials Switching Casimir forces with Phase Change Materials

2010-06-21

arxiv.org/abs/1006.4065v2

Physics

Condensed Matter

Materials Science

7 pages, 3 figures The AFM images for the inset in Fig.2 were replaced with new ones as obtained with tips having high aspect

Scientific paper

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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