Publication

Extraction of the spin torque non-adiabaticity from thermally activated domain wall hopping

2011
Journal Articles

Abstract

We investigate the non-adiabaticity of current-induced domain wall motion by time resolved analysis of thermally activated domain wall motion between two metastable states within a Co/Pt multilayer wire with a strong uniaxial perpendicular anisotropy. By measuring the dwell times for which the domain wall remains in one state, we deduce the non-adiabaticity factor beta using two independent approaches: (i) the dependence of the dwell times on the injected current and (ii) the current-field equivalency. The comparison of the results allows us to gauge their reliability and the observed differences highlight the importance of the two dimensional (2D) nature of the domain wall. (C) 2011 American Institute of Physics. [doi:10.1063/1.3663215]

Official source

https://infoscience.epfl.ch/entities/publication/c115e41c-7497-4de9-b2f0-72ec33b2dacb

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2011
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/c115e41c-7497-4de9-b2f0-72ec33b2dacb

About this result

Related concepts (32)

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An electric current is a flow of charged particles, such as electrons or ions, moving through an electrical conductor or space. It is defined as the net rate of flow of electric charge through a surface. The moving particles are called charge carriers, which may be one of several types of particles, depending on the conductor. In electric circuits the charge carriers are often electrons moving through a wire. In semiconductors they can be electrons or holes.

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Extraction of the spin torque non-adiabaticity from thermally activated domain wall hopping

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