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arXiv · 0706.1742

Intrinsic nanoscale inhomogeneity in ordering systems due to elastic-mediated interactions

I. K. Razumov·Yu. N. Gornostyrev·M. I. Katsnelson
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Abstract

Phase diagram and pattern formation in two-dimensional Ising model with coupling between order parameter and lattice vibrations is investigated by Monte-Carlo simulations. It is shown that if the coupling is strong enough (or phonons are soft enough) a short-range order exists in disordered phase for a broader temperature interval. Different types of this short-range order (stripe-like, checkboard-like, etc.) depending on the temperature and model parameters are investigated. With further increase of the coupling, a reconstruction of the ground state happens and new ordered phases appear at low enough temperatures.

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BibTeXRIS

I. K. Razumov, Yu. N. Gornostyrev, M. I. Katsnelson. 2007-10-26. Intrinsic nanoscale inhomogeneity in ordering systems due to elastic-mediated interactions. https://doi.org/10.1209/0295-5075%2F80%2F66001

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