Document Detail

Generalization of Faraday's Law to include nonconservative spin forces.
MedLine Citation:
PMID:  17677979     Owner:  NLM     Status:  PubMed-not-MEDLINE    
The usual Faraday's Law E=-dPhi/dt determines an electromotive force E which accounts only for forces resulting from the charge of electrons. In ferromagnetic materials, in general, there exist nonconservative spin forces which also contribute to E. These might be included in Faraday's Law if the magnetic flux Phi is replaced by [Planck's constant/(-e)]gamma, where gamma is a Berry phase suitably averaged over the electron spin direction. These contributions to E represent the requirements of energy conservation in itinerant ferromagnets with time dependent order parameters.
S E Barnes; S Maekawa
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Publication Detail:
Type:  Journal Article     Date:  2007-06-15
Journal Detail:
Title:  Physical review letters     Volume:  98     ISSN:  0031-9007     ISO Abbreviation:  Phys. Rev. Lett.     Publication Date:  2007 Jun 
Date Detail:
Created Date:  2007-08-06     Completed Date:  2007-10-18     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401141     Medline TA:  Phys Rev Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  246601     Citation Subset:  -    
Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan.
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