Effect of Fe3O4 nanoparticles on CoFeB/Ta/CoFeB spin-valve magnetoresistance probed by microwave absorptionстатья
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Дата последнего поиска статьи во внешних источниках: 18 мая 2022 г.
Аннотация:Effect of nanoparticles on microwave magnetoresistance in MgO/CoFeB(free)/Ta/CoFeB(fixed)/MgO)/Ta platform and effect of individual nanoparticle on free CoFeB ferromagnetic layer magnetization have experimentally been revealed and analyzed. The area of the platform where magnetization is inverted under scattering field of nanoparticles has been observed. Micromagnetic modeling of dipole magnetic interaction confirms the existence of such areas in “nanoparticle-platform” system. Increase in critical field of the platform and change of resistance under scattering field on nanoparticles have experimentally been revealed.