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

Autor:	Razumov, I. K., Gornostyrev, Yu. N., Katsnelson, M. I.
Rok vydání:	2007
Předmět:	Condensed Matter - Statistical Mechanics Condensed Matter - Materials Science
Zdroj:	Europhys. Lett. 80, 66001 (2007)
Druh dokumentu:	Working Paper
DOI:	10.1209/0295-5075/80/66001
Popis:	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. Comment: final version, Europhys. Lett., accepted
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0706.1742 Zobrazit plný text záznamu View this record from Arxiv