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Abstract <p>In this work, local spin excitations in a ferromagnetic semiconductor nanotube with hexagonal symmetry are investigated. The system is described by a Hamiltonian that includes not only the Heisenberg-type exchange interaction between localized spins, but also the <i>s–d</i> exchange interaction between localized spins and the spins of conduction electrons. The dynamics of spin excitations is studied within the Green’s function formalism, and the magnon spectrum is derived in an analytical form. The influence of temperature on the average spin is analyzed using self-consistent equations. The obtained results are important for understanding the magnetic properties of ferromagnetic semiconductor nanosystems.</p>

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A Microscopic Theory of Local Spin Excitations in a Hexagonal Ferromagnetic Semiconductor Nanotubes

  • 期刊论文

  • 发表日期：

    2026年6月15日

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  • V. A. Tanriverdiyev,
  • N. A. Abdullayev,
  • R. Z. Amirov,
  • İ. N. İbrahimov,
  • V. S. Tagiyev

摘要

Abstract

In this work, local spin excitations in a ferromagnetic semiconductor nanotube with hexagonal symmetry are investigated. The system is described by a Hamiltonian that includes not only the Heisenberg-type exchange interaction between localized spins, but also the s–d exchange interaction between localized spins and the spins of conduction electrons. The dynamics of spin excitations is studied within the Green’s function formalism, and the magnon spectrum is derived in an analytical form. The influence of temperature on the average spin is analyzed using self-consistent equations. The obtained results are important for understanding the magnetic properties of ferromagnetic semiconductor nanosystems.