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Scattering and emission of exchanged spin waves in a magnetic structure with competing exchange interactions
Poimanov V. D.
1,2
1Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences, Moscow, Russia
2Bauman Moscow State Technical University, Moscow, Russia
2Bauman Moscow State Technical University, Moscow, Russia
Email: v.poymanov@ispm.ru
In this work, within the framework of the lattice model, the conditions for the emergence of a ground state of the spin helicoid type, caused by the competition of two exchange interactions of magnetic ions of the first two coordination spheres, are studied. For a homogeneous ground state, the coefficients of scattering and generation of exchanged spin waves by the interface between such a structure and a uniaxial ferromagnet are obtained. The possibility of the emergence of a new type of volume-surface waves in the structure under consideration is shown. Keywords: Exchange helix (spin helicoid), long-range order of exchange interaction, evanescent spin wave, scattering and generation of exchange spin waves.
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