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arXiv · 1006.4138

Shape-dependent Depinning of a Domain Wall by a Magnetic Field and a Spin-Polarized Current

N. Logoboy·B. Shapiro·E. B. Sonin
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Abstract

The effect of sample shape on the depinning of the domain wall (DW) driven by an applied magnetic field or a spin-polarized current is studied theoretically. The shape effect resulting from the modulation of the sample width (geometric pinning) can essentially affect the DW depinning. We found a good agreement between the ratios of the critical values of the magnetic field and the spin-polarized current predicted by the theory and measured in the experiment.

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N. Logoboy, B. Shapiro, E. B. Sonin. 2010-06-21. Shape-dependent Depinning of a Domain Wall by a Magnetic Field and a Spin-Polarized Current. https://doi.org/10.1103/physrevb.82.094419

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