NDLI: Thermally activated domain wall motion in [Co/Ni](111) superlattices with perpendicular magnetic anisotropy

Content Provider	IEEE Xplore Digital Library
Author	Legall, S. Hauet, T. Vernier, N. Hehn, M. Lacour, D. Montaigne, F. Gottwald, M. Andrieu, S. Ravelosona, D. Mangin, S.
Copyright Year	2015
Description	Author affiliation: Inst. Jean Lamour, Univ. de Lorraine, Vamdoeuvre-les-Nancy, France (Hauet, T.; Hehn, M.; Lacour, D.; Montaigne, F.; Gottwald, M.; Andrieu, S.; Mangin, S.) \|\| Univ. of Paris Sud, Orsay, France (Legall, S.; Vernier, N.; Ravelosona, D.)
Abstract	This article presents field-induced magnetization dynamics in a [Co/Ni] superlattice exhibiting strong perpendicular magnetic anisotropy using Kerr microscopy. Domain wall velocity is reported within thermally activated, transitory and flow dynamical regimes. At low field, the thermally activated regime is characterized by dendritic domain growth that differs from the creep mechanism usually observed for the interaction of domains wall with a 2D random pinning potential for layers grown by sputtering. This result is explained by the epitaxial nature of the [Co/Ni] superlattices involving a single-type defect. The transition from the thermally activated to the flow regime is characterized by a reduction of the density of non-reversed domains which exist after domain wall displacement. The effect of spin transfer torque on domain wall is also discussed.
Starting Page	1
Ending Page	1
File Size	240010
Page Count	1
File Format	PDF
e-ISBN	9781479973224
DOI	10.1109/INTMAG.2015.7156512
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-05-11
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Creep Perpendicular magnetic anisotropy Films Superlattices Magnetic domain walls Magnetic domains Nanoscale devices
Content Type	Text
Resource Type	Article

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