Monte Carlo studies of the two-dimensional registry transition
- 1 September 1980
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 22 (5) , 2506-2513
- https://doi.org/10.1103/physrevb.22.2506
Abstract
Monte Carlo calculations are reported for a model of a monolayer film on graphite, which consists of atoms interacting with near-neighbor harmonic forces, situated in a hexagonal-symmetry substrate potential. The results are consistent with a second-order commensurate-incommensurate transition as a function of natural misfit. The domain-wall structure appears to switch from hexagonal symmetry to linear right before the transition occurs. A second-order commensurate-incommensurate transition is also found as a function of temperature at a temperature equal to about half the substrate well depth for a fixed natural misfit equal to 7% of a commensurate-state lattice constant.Keywords
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