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Abstract <p>Based on the theory describing the propagation of electromagnetic waves in a tangentially magnetized bi-gyrotropic layer, modulus <i>P</i> and the orientation of the Poynting vector are investigated for a special case of such a layer: an arbitrary surface–surface spin wave (the distribution of which over the layer’s thickness is described by two different wave numbers) in a ferrite plate. It is found that modulus <i>P</i> of the Poynting vector exhibits a jumpwise change on the surfaces of the plate, taking maximum values on both its surfaces. Most of the wave energy is localized near the surface, where the value of the Poynting vector is highest.</p>

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Modulus and Orientation of the Poynting Vector of a Surface Spin Wave in a Tangentially Magnetized Ferrite Plate

  • 期刊论文

  • 发表日期：

    2025年11月7日

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  • E. H. Lock,
  • S. V. Gerus

摘要

Abstract

Based on the theory describing the propagation of electromagnetic waves in a tangentially magnetized bi-gyrotropic layer, modulus P and the orientation of the Poynting vector are investigated for a special case of such a layer: an arbitrary surface–surface spin wave (the distribution of which over the layer’s thickness is described by two different wave numbers) in a ferrite plate. It is found that modulus P of the Poynting vector exhibits a jumpwise change on the surfaces of the plate, taking maximum values on both its surfaces. Most of the wave energy is localized near the surface, where the value of the Poynting vector is highest.