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Layers of magnetic materials from several nanometers to several micrometers in thickness are in wide use for applications including electronics, and magnetic recording media. In the last two decades the areal density of data storage and the data transfer rate in magnetic recording systems have been drastically improved. The magnetic damping remains among the factors that limit the switching speed...
Fe70Co30 alloy clusters were prepared by a plasma-gas-condensation-type cluster deposition technique. By adjusting the deposition parameters, size-monodispersed Fe70Co30 alloy clusters were obtained and their average sizes can be changed from 8.6 to 14.3 nm. The structural and magnetic properties of these alloy nanoclusters were studied. The as-obtained Fe70Co30 clusters have a body-centered-cubic...
The magnetic anisotropy properties of (Ga, Mn)As epilayers are dependent on strain, thickness, substrates orientation, measurement temperature and shape. Systematic study magnetic anisotropy is important owing to they will strongly influence its application of spintronic devices. The effect of low-temperature annealing on the lattice constant and magnetic properties of ternary (Ga, Mn)As grown on...
The study of magnetization on beta-FeSi2 nanoparticles with particle size of 15 nm, 22 nm and 75 nm confirmed that semiconducting beta-FeSi2 became superparamagnetic as it was reduced into nanoparticles. The superparamagnetic characteristics were identified by the irreversible magnetization and blocking temperatures of FC and ZFC measurements. The correlations among blocking temperature, anisotropic...
We report demonstration of an optical magnetic mirror achieved by nanostructuring a metal surface. In contrast to normal mirrors, it inflicts only small change to the phase of a reflected wave, offering intriguing applications.
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