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Beyond the magnetic domain matching in magnetic exchange coupling.
MedLine Citation:
PMID:  20868191     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
We report a new macroscopic first-field-induced magnetic anisotropy for Co/α-Fe2O3(0001) layers, a prototypical ferromagnetic-antiferromagnetic interface for which the antiferromagnetic film has small in-plane magnetic anisotropy as compared to the interface coupling. We demonstrate that the effect is due to a first-field-induced irreversible magnetic domain motion in the antiferromagnetic layer, dragged by the ferromagnetic Co one. Whereas the initial domain matching is lost, the macroscopic manifestations of the exchange coupling remain stable. Therefore, the initial domain matching probably has only a marginal role in the explanation of the magnetic exchange coupling.
Authors:
H Magnan; O Bezencenet; D Stanescu; R Belkhou; A Barbier
Publication Detail:
Type:  Journal Article     Date:  2010-08-26
Journal Detail:
Title:  Physical review letters     Volume:  105     ISSN:  1079-7114     ISO Abbreviation:  Phys. Rev. Lett.     Publication Date:  2010 Aug 
Date Detail:
Created Date:  2010-09-27     Completed Date:  2011-01-11     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401141     Medline TA:  Phys Rev Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  097204     Citation Subset:  -    
Affiliation:
CEA Saclay, DSM/IRAMIS/SPCSI, F-91191 Gif-sur-Yvette Cedex, France.
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