Growth of Co Nanomagnet Arrays with Enhanced Magnetic Anisotropy

Nanomagnets: Growth of Co Nanomagnet Arrays with Enhanced Magnetic Anisotropy (Adv. Sci. 9/2016)

Spin-polarized current switching of a Co thin film nanomagnet

A thin film Co nanomagnet in the shape of an elongated hexagon has been incorporated in a vertical device structure consisting of the nanomagnet and a thin Cu spacer layer formed on top of a thick Co film. The spin-polarized current flowing between the nanomagnet and the Co film is used to abruptly switch the magnetic alignment of the nanomagnet relative to that of the thick Co layer by the tra...

Perpendicular magnetic anisotropy in Co–Pt granular multilayers

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Contents: (Adv. Sci. 9/2016)

A trigon structure formed by submonolayer gadolinium deposition onto Au(111) is revealed as a robust growth template for cobalt nanodot arrays by Frederik Schiller and co-workers in article 1600187. The cobalt nanoislands behave as independent magnetic entities with an out-of-plane easy axis of anisotropy and enhanced magnetic anisotropy values, as compared to other self-organized cobalt nanodo...

Mechanical rotation of nanomagnet through interaction with an electromagnetic wave

We report a theoretical study on the effect of mechanical rotation of nanomagnet about a fixed axis due to its interaction with an electromagnetic wave with a frequency approaching that of ferromagnetic resonance. A stationary mode of rotation is investigated. We show that the rotation speed magnitude is proportional to the squared amplitude of the wave’s magnetic field, being maximum for a cir...