2D Ising-Heisenberg model with quartic interaction

• Published in: Вопросы атомной науки и техники
• Date: 2012
• Main Author: Valverde, J.S.
• Format: Article
• Language: English
• Published: Instituto de Matem´atica, Estat´ıstica e F´ısica, Universidade Federal do Rio Grande 2012
• Subjects: Section E. Phase Transitions and Diffusion Processes in Condensed Matter and Gases
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/107157
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: 2D Ising-Heisenberg model with quartic interaction / J.S. Valverde // Вопросы атомной науки и техники. — 2012. — № 1. — С. 277-282. — Бібліогр.: 8 назв. — англ.

We propose a two-dimensional spin-1/2 Ising-Heisenberg model with quartic interaction. In this sense the phase diagram for the model at zero temperature is studied, obtaining four different configurations for the unitary cell. It should be observed that using the rotation and spin inversion symmetry...