Abstract
Transmission of electromagnetic waves through (Fe0.82Ni0.18)/V superlattices has been studied at frequencies from 27 to 38 GHz. For the superlattices with antiparallel ordering of magnetization of neighbor ferromagnetic layers the microwave giant magnetoresistive effect is observed. The thickness of Fe0.82Ni0.18 layers which have reduced magnetization is estimated from comparison of magnetization obtained from magnetic measurements and from ferromagnetic resonance results in microwave transmission. For (1 0 0)MgO/[Fe0.82Ni0.18(4ML)/V(7ML)]100/Pd(6 nm) superlattice in frequency range from 36.4 to 37 GHz the influence of spin-wave resonances has been found. Explanation is given for these resonances based on solution of the dispersion equation for the waves in ferromagnetic metallic plate and calculation of transmission coefficient in magnetic field.
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