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arXiv:0812.1862

Phase Diagram of spin 1/2 XXZ Model With Dzyaloshinskii-Moriya Interaction

Rouhollah Jafari, A. Langari

Published Dec 10, 2008• 4 citations
arXivHTMLPDF

Abstract

We have studied the phase diagram of the one dimensional XXZ model with Dzyaloshinskii-Moriya (DM) interaction. We have applied the quantum renormalization group (QRG) approach to get the stable fixed points, critical point and the scaling of coupling constants. This model has three phases, ferromagnetic, spin-fluid and Néel phases which are separated by a critical line which depends on the DM coupling constant. We have shown that the staggered magnetization is the order parameter of the system and investigated the influence of DM interaction on the chiral ordering as a helical magnetic order.

DOI
10.48550/arxiv.0812.1862

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