Ising nematic in J1–J2 square-lattice Heisenberg model within self-consistent spin-wave theory

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Abstract

We study the Ising nematic ordering, the Ising nematic phase transition, and the temperature behavior of the short-range order parameters in spin 1/2 quantum Heisenberg model on two-dimensional square-lattice with exchange parameters of nearest and next-nearest neighbors. Two versions of the self-consistent spin-wave theory with and without auxiliary pseudofermions are considered.

About the authors

A. N. Ignatenko

Mikheev Institute of Metal Physics of the Ural Branch of the Russian Academy of Sciences

Author for correspondence.
Email: ignatenko@imp.uran.ru
Russia, 620108, Yekaterinburg

V. Yu. Irkhin

Mikheev Institute of Metal Physics of the Ural Branch of the Russian Academy of Sciences

Email: ignatenko@imp.uran.ru
Russia, 620108, Yekaterinburg

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Copyright (c) 2023 А.Н. Игнатенко, В.Ю. Ирхин