Effect of anisotropic Dzyaloshinskii–Moriya interactions on phase diagrams of the Ashkin–Teller model

I. Dani, N. Tahiri, H. Ez-Zahraouy and A. Benyoussef

Physica A: Statistical Mechanics and its Applications, 2016, vol. 455, issue C, 92-97

Abstract: In this paper we study, using mean field theory (MFT), the effect of the anisotropic Dzyaloshinskii–Moriya (DM) interaction on the phase diagrams of the spin-half Ashkin–Teller model on hypercubic lattice. Different new phase diagrams are found by varying the anisotropy of DM interaction. The multicritical behavior is studied as a function of four-spin interaction coefficient J4/J1 and for two fixed values of spin interaction coefficient J2/J1.

Keywords: Anisotropic Dzyaloshinskii-Moriya interaction; Ashkin–Teller model; Multicritical behavior; Mean field theory (search for similar items in EconPapers)
Date: 2016
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:455:y:2016:i:c:p:92-97

DOI: 10.1016/j.physa.2016.03.010

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