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Автор(ы) : Ustinov V. V., Rinkevich A. B., Vazhenina I. G., Milyaev M. A.
Заглавие : Microwave giant magnetoresistance and ferromagnetic and spin-wave resonances in (CoFe)/Cu nanostructures
Коллективы : Russian Science FoundationRussian Science Foundation (RSF) [AAAA-A18-118020290104-2, AAAA-A19-119012990095-0]; [17-1201002]
Место публикации : J. Exp. Theor. Phys. - 2020. - Vol. 131, Is. 1. - P.139-148. - ISSN 1063-7761, DOI 10.1134/S1063776120070171. - ISSN 1090-6509(eISSN)
Примечания : Cited References: 51. - This work was performed in terms of project Spin no. AAAA-A18-118020290104-2 and project Function no. AAAA-A19-119012990095-0. Section 3 was supported by the Russian Science Foundation, project no. 17-1201002
Предметные рубрики: COFE/CU SUPERLATTICES
MAGNETIC MULTILAYERS
CO/CU MULTILAYERS
FILMS
Аннотация: The microwave phenomena that occur in magnetic multilayer (CoFe)/Cu nanostructures, which have a giant magnetoresistance, are studied. The transmission of waves through a nanostructure is used to investigate the microwave giant magnetoresistance effect. The changes in the transmission coefficient at frequencies of 29–38 GHz are found to exceed the relative magnetoresistance, which distinguishes the system under study from the nanostructures studied earlier. Ferromagnetic and spin-wave resonances are used to study the angular dependences of the microwave absorption spectra of a multilayer (CoFe/Cu)n nanostructure. The following parameters are determined: the critical angle that determines the boundaries of the ranges of excitation of uniform and nonuniform spin modes, the type of boundary conditions describing the pinning of spins on the outer nanostructure surfaces, and the surface anisotropy and exchange interaction constants.
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