Thermally activated depinning of a narrow domain wall from a single defect.
Phys Rev Lett
; 96(14): 147204, 2006 Apr 14.
Article
em En
| MEDLINE
| ID: mdl-16712117
ABSTRACT
We describe the field induced depinning process of a magnetic domain wall (DW) from a single bidimensional nanometric defect. The DW propagates in a wire lithographed on a film with strong perpendicular anisotropy. We observe a statistical distribution of the relaxation time consistent with a Néel-Brown picture of magnetization reversal. This indicates that the nanometric DW can be considered as an ideal monodomain particle switching over a single energy barrier. Such a stochastic character of DW depinning has to be taken into account for spintronic applications.
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MEDLINE
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En
Revista:
Phys Rev Lett
Ano de publicação:
2006
Tipo de documento:
Article
País de afiliação:
França