Document Detail


Asymmetric domain nucleation and unusual magnetization reversal in ultrathin Co films with perpendicular anisotropy.
MedLine Citation:
PMID:  17501087     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
We report unexpected phenomena during magnetization reversal in ultrathin Co films and Co/Pt multilayers with perpendicular anisotropy. Using magneto-optical Kerr microscopy and magnetic force microscopy we have observed asymmetrical nucleation centers where the reversal begins for one direction of the field only and is characterized by an acute asymmetry of domain-wall mobility. We have also observed magnetic domains with a continuously varying average magnetization, which can be explained in terms of the coexistence of three magnetic phases: up, down, and striped.
Authors:
Y L Iunin; Y P Kabanov; V I Nikitenko; X M Cheng; D Clarke; O A Tretiakov; O Tchernyshyov; A J Shapiro; R D Shull; C L Chien
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.     Date:  2007-03-16
Journal Detail:
Title:  Physical review letters     Volume:  98     ISSN:  0031-9007     ISO Abbreviation:  Phys. Rev. Lett.     Publication Date:  2007 Mar 
Date Detail:
Created Date:  2007-05-15     Completed Date:  2007-06-05     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401141     Medline TA:  Phys Rev Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  117204     Citation Subset:  -    
Affiliation:
Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka 142432, Russia.
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