A Chemical turnstile

W. T. Lee; E. K. H. Salje

doi:10.1063/1.2084339

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arXiv · 1103.4345

A Chemical turnstile

W. T. Lee·E. K. H. Salje

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Abstract

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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W. T. Lee, E. K. H. Salje. 2011-03-22. A Chemical turnstile. https://doi.org/10.1063/1.2084339

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