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arXiv · 0906.3443

Metamagnetic phase transition in the Ising plus Dzyaloshinskii-Moriya model

M. R. Soltani·S. Mahdavifar·Alireza Akbari·A. A. Masoudi
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Abstract

We study the 1D ferromagnetic Ising (spin-1/2) model with the Dzyaloshinskii-Moriya (DM) interaction. We analyze the low energy excitation spectrum and the ground state magnetic phase diagram using the Lanczos method. The DM interaction-dependency is calculated for the low-energy excitation spectrum, spiral order parameter and spin-spin correlation functions. We show that a metamagnetic quantum phase transition occurs between the ferromagnetic and spiral phases. The existence of the metamagnetic phase transition is confirmed, using the variational matrix product states approach.

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M. R. Soltani, S. Mahdavifar, Alireza Akbari, A. A. Masoudi. 2009-06-18. Metamagnetic phase transition in the Ising plus Dzyaloshinskii-Moriya model. https://doi.org/10.1007/s10948-010-0785-x

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