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Phase diagram of pinned lattices in the phase field crystal model
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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en
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Journal of Physics: Conference Series, Volume 100, issue 7, pp. 1-4
Abstract
We study the phase diagram and the commensurate-incommensurate phase transitions of a two-dimensional phase field crystal model for adsorbed layers. The model allows for both elastic and plastic deformations on atomic and diffusive time-scales, and provides a continuum description of lattice systems, such as adsorbed atomic layers or two-dimensional vortex lattices. Analytically, mode expansion analysis and numerical minimization of the free energy are used to determine the ground states as a function of the pinning potential and lattice mismatch parameter. The results show a rich phase diagram with several different types of commensurate and incommensurate phases.
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Achim, C, Karttunen, M, Elder, K, Granato, E, Ala-Nissila, T & Ying, S C 2008, 'Phase diagram of pinned lattices in the phase field crystal model', Journal of Physics: Conference Series, vol. 100, no. 7, 072001, pp. 1-4. https://doi.org/10.1088/1742-6596/100/7/072001