Commensurate-incommensurate phase transition of a physisorbed layer on an elastic substrate
- 1 February 1979
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 12 (4) , L151-L154
- https://doi.org/10.1088/0022-3719/12/4/004
Abstract
The effect of substrate distortion upon commensurate-incommensurate (C-I) transitions in physisorbed layers is considered. For appropriate values of the elastic constants, the misfit parameter becomes proportional to the square root of the chemical potential near the transition. For other values of the elastic constants, a first-order transition results. This effect is quite different from three-dimensional C-I transitions, where the interaction with (transverse) strains always produces a first-order transition.Keywords
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