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Journal of Superconductivity and Novel Magnetism

, Volume 32, Issue 10, pp 3097–3102 | Cite as

Propagation of Spin Waves Through an Interface Between Ferromagnetic and Antiferromagnetic Materials

  • Oksana BuselEmail author
  • Oksana Gorobets
  • Yuri Gorobets
Original Paper
  • 104 Downloads

Abstract

Boundary conditions for order parameters at an interface between ferromagnetic (FM) and two-sublattice antiferromagnetic (AFM) materials are obtained in the continuous medium approximation similarly to the approach which allows one to take into account the finite thickness of the FM/FM interface, which is much less than spin wavelength. Three order parameters are considered inside an interface of finite thickness with the magnetization M of FM, magnetizations of both sublattices M1 and M2 of AFM. The uniform and non-uniform exchange between all order parameters are taken into account to the interface energy. Using these boundary conditions, the excitation of a surface evanescent spin wave is considered in AFM when the spin wave in FM falls onto this interface. The coefficients and the phases of transmission and reflection of spin wave through the FM/AFM interface are derived.

Keywords

Ferromagnet Antiferromagnet Finite thickness interface Boundary conditions Evanescent spin wave 

Notes

Funding Information

This work was supported by the European Union’s Horizon 2020 research and innovation program under the Marie Sklodowska-Curie GA No. 644348 (MagIC).

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Faculty of Mathematics and PhysicsNational Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”KyivUkraine
  2. 2.Institute of Magnetism NAS and MES of UkraineKyivUkraine

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