UNSPECIFIED. (2002) Onset of magnetic order in fcc-Fe films on Cu(100). PHYSICAL REVIEW LETTERS, 88 (14). -. ISSN 0031-9007

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Abstract

On the basis of an ab initio theory of metallic magnetism in layered materials, we investigate the onset of magnetic order in thin (2-8 layers) fcc-Fe films on and embedded in Cu(100) substrates. In particular, we find an oscillatory dependence of the Curie temperatures on embedding depth, in excellent agreement with experimental data. The thermally induced spin fluctuations are treated within a mean-field disordered local moment picture and give rise to layer-dependent local exchange splittings in the electronic structure even in the paramagnetic phase. These features determine the magnetic intralayer and interlayer interactions which are strongly influenced by the presence and extent of the Cu cap.

Item Type:	Journal Article
Subjects:	Q Science > QC Physics
Journal or Publication Title:	PHYSICAL REVIEW LETTERS
Publisher:	AMERICAN PHYSICAL SOC
ISSN:	0031-9007
Official Date:	8 April 2002
Dates:	Date Event 8 April 2002 UNSPECIFIED
Volume:	88
Number:	14
Number of Pages:	4
Page Range:	-
Identifier:	10.1103/PhysRevLett.88.147201
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/11105

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