Document Detail


Dynamics of magnetic charges in artificial spin ice.
MedLine Citation:
PMID:  21231135     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
Artificial spin ice has been recently implemented in two-dimensional arrays of mesoscopic magnetic wires. We propose a theoretical model of magnetization dynamics in artificial spin ice under the action of an applied magnetic field. Magnetization reversal is mediated by domain walls carrying two units of magnetic charge. They are emitted by lattice junctions when the local field exceeds a critical value Hc required to pull apart magnetic charges of opposite sign. Positive feedback from Coulomb interactions between magnetic charges induces avalanches in magnetization reversal.
Authors:
Paula Mellado; Olga Petrova; Yichen Shen; Oleg Tchernyshyov
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Publication Detail:
Type:  Journal Article     Date:  2010-10-27
Journal Detail:
Title:  Physical review letters     Volume:  105     ISSN:  1079-7114     ISO Abbreviation:  Phys. Rev. Lett.     Publication Date:  2010 Oct 
Date Detail:
Created Date:  2011-01-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401141     Medline TA:  Phys Rev Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  187206     Citation Subset:  -    
Affiliation:
Department of Physics and Astronomy, The Johns Hopkins University, Baltimore, Maryland 21218, USA.
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