Stochastic and complex depinning dynamics of magnetic domain walls - Archive ouverte HAL
Article Dans Une Revue Physical Review B Année : 2011

Stochastic and complex depinning dynamics of magnetic domain walls

François Montaigne
Michel Hehn
Daniel Lacour

Résumé

We study the thermally induced depinning process of a single magnetic domain wall (DW) under applied field when the DW is trapped by a notch made in a nanowire shaped from a spin-valve multilayer with in-plane magnetization. In such devices depinning is typically a stochastic process and the depinning field distribution exhibits complex features. By analyzing simultaneously depinning field distributions and relaxation data, we observe two distinct sources of "complexity" in DW depinning processes: multiplicity in the DW structure and fundamental complexity in the depinning process.
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Dates et versions

hal-02949052 , version 1 (29-10-2021)

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Joel Briones, François Montaigne, Michel Hehn, Daniel Lacour, Jeffrey R Childress, et al.. Stochastic and complex depinning dynamics of magnetic domain walls. Physical Review B, 2011, 83, pp.060401. ⟨10.1103/PhysRevB.83.060401⟩. ⟨hal-02949052⟩
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