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arXiv · cond-mat/9711174

Basal-plane Incommensurate Phases in HCP Structures

I. Luk'yanchuk·A. Jorio·M. A. Pimenta
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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.

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I. Luk'yanchuk, A. Jorio, M. A. Pimenta. 1997-11-18. Basal-plane Incommensurate Phases in HCP Structures. https://doi.org/10.1103/physrevb.57.5086

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