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Article Dans Une Revue Applied Physics Letters Année : 2008

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

Résumé

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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Dates et versions

hal-00202458 , version 1 (07-01-2008)

Identifiants

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J. Briones, F. Montaigne, Daniel Lacour, M. Hehn, M. J. Carey, et al.. Magnetic domain wall propagation in a submicron spin-valve stripe: influence of the pinned layer. Applied Physics Letters, 2008, 92, pp.032508. ⟨10.1063/1.2835201⟩. ⟨hal-00202458⟩
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