This title appears in the Scientific Report : 2011 

Depinning of transverse domain walls from notches in magnetostatically coupled nanostrips
Garcia-Sanchez, F.
Kakay, A. / Hertel, R. / Asselin, P.
Elektronische Eigenschaften; PGI-6
Applied physics express, 4 (2011) S. 033001
Tokyo ¯Oy¯o Butsuri-Gakkai 2011
033001
10.1143/APEX.4.033001
Journal Article
Grundlagen für zukünftige Informationstechnologien
Applied Physics Express 4
J
Please use the identifier: http://dx.doi.org/10.1143/APEX.4.033001 in citations.
The separation-dependent interaction between domain walls (DWs) in two Permalloy nanostrips containing a double notch is studied by means of micromagnetic simulations. We show that the DW configuration and the relative chirality affect the field required for depinning from the notch. In the case of repulsive interaction, the DW configuration can become unstable at small separation distances, where DWs can depin even without applying external fields. The effect of the magnetostatic interaction on the stability is quantified by calculating the energy barrier connected to the depinning mechanism. (C) 2011 The Japan Society of Applied Physics