Basal-plane Incommensurate Phases in HCP Structures
Statistical Mechanics
2007-05-23 v1
Abstract
An Ising model with competing interaction is used to study the appearance of incommensurate phases in the basal plane of an hexagonal closed-packed structure. The calculated mean-field phase diagram reveals various 1q-incommensurate and lock-in phases. The results are applied to explain the basal-plane incommensurate phase in some compounds of the A'A"BX_4 family, like K_2MoO_4, K_2WO_4, Rb_2WO4 and to describe the sequence of high-temperature phase transitions in other compounds of this family.
Keywords
Cite
@article{arxiv.cond-mat/9711174,
title = {Basal-plane Incommensurate Phases in HCP Structures},
author = {I. Luk'yanchuk and A. Jorio and M. A. Pimenta},
journal= {arXiv preprint arXiv:cond-mat/9711174},
year = {2007}
}
Comments
8 pages, RevTeX + 4 ps figures