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Onset of magnetic order in fcc-Fe films on Cu(100)
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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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Official URL: http://dx.doi.org/10.1103/PhysRevLett.88.147201
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 |
| Date: | 8 April 2002 |
| Volume: | 88 |
| Number: | 14 |
| Number of Pages: | 4 |
| Page Range: | - |
| Identification Number: | 10.1103/PhysRevLett.88.147201 |
| Publication Status: | Published |
| URI: | http://wrap.warwick.ac.uk/id/eprint/11105 |
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