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Recently, Spin-Orbit torque (SOT) arising from the ferromagnetic heterostructures consisting of an ultra-thin ferromagnet (FM) sandwiched between a heavy metal (HM) and an Oxide layer has attracted extensive attention in the low power magnetic memory and logic devices.
The ferromagnetic resonance frequency fFMR of soft magnetic films (SMFs) can be expressed by the Kittel equation. Clearly, high 4pMS and HK are needed to achieve a high fFMR in SMFs. Previous research on achieving high fFMR SMFs has mostly been focused on enhancing uniaxial magnetic anisotropy field HK since it is relatively easier to be enhanced by 1–2 orders of magnitude, compared to saturation...
Soft magnetic films (SMFs) are key materials for miniaturization and multifunctionality of radio frequency and microwave components and integrated circuits (ICs) due to the good high-frequency soft magnetic performances and the compatibility to IC processing technologies. Magnetic micro-inductors are one of widely used microwave IC components. The SMFs in magnetic micro-inductors should have a well-defined...
Due to significant application in medical treatment, magnetic record and cryogenic magneto-refrigeration, a great amount of researches on ferromagnetic nanoparticles were executed [1]. With decrease of the scale of ferromagnetic material, the magnetic order and magnetization gradually decrease and such decrease is attributed to the increasing surface disorder or surface spin canting. However, for...
The extent to which dipolar interactions affect switching field distributions and thermal stability, and subsequently system performance, depends closely on the areal density, materials properties, and the architecture of the media, as well as the recording scheme and field profiles. This paper assesses, via micromagnetic simulations, the potential of heterogeneous capped bit patterned media and other...
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