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arXiv · 0801.0781

Magnetic domain wall propagation in a submicron spin-valve stripe: influence of the pinned layer

J. Briones·F. Montaigne·Daniel Lacour·M. Hehn·M. J. Carey·J. R. Childress
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Abstract

The propagation of a domain wall in a submicron ferromagnetic spin-valve stripe is investigated using giant magnetoresistance. A notch in the stripe efficiently traps an injected wall stopping the domain propagation. The authors show that the magnetic field at which the wall is depinned displays a stochastic nature. Moreover, the depinning statistics are significantly different for head to head and tail-to-tail domain walls. This is attributed to the dipolar field generated in the vicinity of the notch by the pinned layer of the spin-valve.

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J. Briones, F. Montaigne, Daniel Lacour, M. Hehn, M. J. Carey, J. R. Childress. 2008-01-07. Magnetic domain wall propagation in a submicron spin-valve stripe: influence of the pinned layer. https://doi.org/10.1063/1.2835201

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