Open AccessСпин-волновой резонанс в обменно-связанных трехслойных FeNi/Cu/FeNi планарных структурах
Author(s) -
И.Г. Важенина,
С.В. Столяр,
В.Ю. Яковчук,
Р.С. Исхаков
Publication year - 2021
Publication title -
fizika tverdogo tela
Language(s) - English
Resource type - Journals
eISSN - 1726-7498
pISSN - 0367-3294
DOI - 10.21883/ftt.2021.12.51671.170
Subject(s) - condensed matter physics , ferromagnetism , diamagnetism , spin wave , resonance (particle physics) , exchange interaction , ferromagnetic resonance , spin (aerodynamics) , materials science , magnetic field , physics , atomic physics , magnetization , quantum mechanics , thermodynamics
The spectrums of standing exchange spin waves into magnetic sandwich Ni80Fe20/Cu(tCu)/Ni80Fe20 were studied by spin-wave resonance method. The layer of diamagnetic Cu depending on its thickness tCu provided both positive and negative exchange interaction between ferromagnetic layers. It was shown that spin waves modes of SWR spectra which are described by well-known relation Hres(n)~n^2 are standing acoustic exchange spin oscillations of individual ferromagnetic layers, regardless of a sign of interlayer exchange couple. It was detected that spin modes which are optical satellites of acoustic SWR peaks are described by the dependence of the resonance field Hres(n)~n^(5/2) or Hres(n)~n^2 depending on the boundary conditions established on inner interfaces.