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Abstract <p>For the three-orbital model of a strongly correlated insulator with one electron per site filling, the orbital and spin order in the ground state is investigated taking into account local correlations. With a large crystal field, a continuous transition from the hidden-order phase to the weak ferromagnetic phase is obtained; the critical parameter of the Hund interaction at the transition point depends on the magnitude of the spin–orbit coupling.</p>

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Study of the Ground State of the Three-Orbital Model of Layered Perovskite

  • 期刊论文

  • 发表日期：

    2025年11月7日

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  • D. E. Chizhov,
  • P. A. Igoshev

摘要

Abstract

For the three-orbital model of a strongly correlated insulator with one electron per site filling, the orbital and spin order in the ground state is investigated taking into account local correlations. With a large crystal field, a continuous transition from the hidden-order phase to the weak ferromagnetic phase is obtained; the critical parameter of the Hund interaction at the transition point depends on the magnitude of the spin–orbit coupling.