Document Detail

Magnetic ordering in Fe/Co sandwiches on Cu(100).
MedLine Citation:
PMID:  21828468     Owner:  NLM     Status:  In-Data-Review    
We investigate magnetic correlations and local magnetic moments at finite temperatures of some Fe and Co multilayers on Cu(100) substrates, such as Co(m)Fe(n)Co(m)/Cu(100) and Fe(m)Co(n)Fe(m)/Cu(100). We use an ab initio mean-field theory of magnetic fluctuations for layered materials based on the first-principles local spin-density functional theory implemented through the screened Korringa-Kohn-Rostoker method. We find that the presence of Fe layers in the neighbourhood of a Co layer always leads to a reduction in the magnetic moment of the Co atoms, whereas that of the Fe atoms is enhanced. Of particular interest is the lack of local moment formation on the single fcc-Co layer sandwiched between two fcc-Fe layers. However, a Co layer completely immersed in a Cu environment remains ferromagnetic. The Curie temperature of the Co(m)Fe(n)Co(m)/Cu(100) system oscillates as the Fe layer thickness is increased whereas that of the Fe(m)Co(n)Fe(m)/Cu(100) system increases almost monotonically with Co layer thickness.
S S A Razee; J B Staunton; L Szunyogh
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Publication Detail:
Type:  Journal Article     Date:  2009-06-11
Journal Detail:
Title:  Journal of physics. Condensed matter : an Institute of Physics journal     Volume:  21     ISSN:  0953-8984     ISO Abbreviation:  J Phys Condens Matter     Publication Date:  2009 Jul 
Date Detail:
Created Date:  2011-08-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101165248     Medline TA:  J Phys Condens Matter     Country:  England    
Other Details:
Languages:  eng     Pagination:  265004     Citation Subset:  -    
Department of Physics, Kuwait University, PO Box 5969, Safat 13060, Kuwait.
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