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Elementary depinning processes of magnetic domain walls under fields and currents.

ABSTRACT: The probability laws associated to domain wall depinning under fields and currents have been studied in NiFe and FePt nanowires. Three basic domain wall depinning processes, associated to different potential landscapes, are found to appear identically in those systems with very different anisotropies. We show that these processes constitute the building blocks of any complex depinning mechanism. A Markovian analysis is proposed, that provides a unified picture of the depinning mechanism and an insight into the pinning potential landscape.

SUBMITTER: Nguyen VD

PROVIDER: S-EPMC4180821 | biostudies-other | 2014

REPOSITORIES: biostudies-other

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Elementary depinning processes of magnetic domain walls under fields and currents.

Nguyen V D VD Torres W Savero WS Laczkowski P P Marty A A Jamet M M Beigné C C Notin L L Vila L L Attané J P JP

Scientific reports 20141001

The probability laws associated to domain wall depinning under fields and currents have been studied in NiFe and FePt nanowires. Three basic domain wall depinning processes, associated to different potential landscapes, are found to appear identically in those systems with very different anisotropies. We show that these processes constitute the building blocks of any complex depinning mechanism. A Markovian analysis is proposed, that provides a unified picture of the depinning mechanism and an i ...[more]

PMID: 25270773

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