Abstract
The continual approximation of the ground state of the discrete Frenkel–Kontorova model is tested using a symmetric algorithm of numerical simulation. A “kaleidoscope effect” is found, which means that the curves representing the dependences of the relative extension of an N-atom chain vary periodically with increasing N. Stairs of structural transitions for N ≫ 1 are analyzed by the channel selection method with the approximation N = ∞. Images of commensurable and incommensurable structures are constructed. The commensurable–incommensurable phase transitions are stepwise.
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Original Russian Text © A.Yu. Babushkin, A.K. Abkaryan, B.S. Dobronets, V.S. Krasikov, A.N. Filonov, 2016, published in Fizika Tverdogo Tela, 2016, Vol. 58, No. 9, pp. 1772–1782.
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Babushkin, A.Y., Abkaryan, A.K., Dobronets, B.S. et al. The ground state of the Frenkel–Kontorova model. Phys. Solid State 58, 1834–1845 (2016). https://doi.org/10.1134/S1063783416090080
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DOI: https://doi.org/10.1134/S1063783416090080