A Chemical turnstile

Details A Chemical turnstile A Chemical turnstile

2011-03-22

arxiv.org/abs/1103.4345v1

Applied Physics Letters 87, 143110 (2005)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

2 pages, 3 figures

Scientific paper

10.1063/1.2084339

A chemical turnstile is a device for transporting small, well-characterised doses of atoms from one location to another. A working turnstile has yet to be built, despite the numerous technological applications available for such a device. The key difficulty in manufacturing a chemical turnstile is finding a medium which will trap and transport atoms. Here we propose that ferroelastic twin walls are suitable for this role. Previous work shows that twin walls can act as two-dimensional trapping planes within which atomic transport is fast. We report simulations showing that a stress-induced reorientation of a twin wall can occur. This behaviour is ideal for chemical turnstile applications.

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