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Abstract <p>Critical phenomena in cubic helimagnets with nonequivalent magnetic atoms are investigated within the framework of the Weiss mean-field theory. The reason for the occurrence of temperature dependences of elastic moduli and the pitch of the magnetic helicoid is found, and the form of these dependences, determining the change in the conditions for the appearance of magnetic skyrmions in the type-II multiferroic Cu<sub>2</sub>OSeO<sub>3</sub>, is predicted.</p>

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Temperature Dependence of the Elastic Moduli and Period of Magnetic Spirals in Cubic Helimagnets with Spins in Nonequivalent Positions

  • 期刊论文

  • 发表日期：

    2025年8月1日

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  • V. A. Chizhikov,
  • V. E. Dmitrienko

摘要

Abstract

Critical phenomena in cubic helimagnets with nonequivalent magnetic atoms are investigated within the framework of the Weiss mean-field theory. The reason for the occurrence of temperature dependences of elastic moduli and the pitch of the magnetic helicoid is found, and the form of these dependences, determining the change in the conditions for the appearance of magnetic skyrmions in the type-II multiferroic Cu2OSeO3, is predicted.