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Titolo:
Chemical long-range ordering in a CoPt alloy film grown by molecular beam epitaxy
Autore:
Grange, W; Ulhaq-Bouillet, C; Maret, M; Thibault, J;
Indirizzi:
Inst Phys & Chim Mat Strasbourg, F-67037 Strasbourg, France Inst Phys & Chim Mat Strasbourg Strasbourg France F-67037 sbourg, France CEA, Dept Rech Fondamentale Mat Condensee, F-38054 Grenoble, France CEA Grenoble France F-38054 tale Mat Condensee, F-38054 Grenoble, France
Titolo Testata:
ACTA MATERIALIA
fascicolo: 8, volume: 49, anno: 2001,
pagine: 1439 - 1444
SICI:
1359-6454(20010508)49:8<1439:CLOIAC>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
PERPENDICULAR MAGNETIC-ANISOTROPY; X-RAY-DIFFRACTION; THIN-FILMS; SOLID-SOLUTIONS; TEMPERATURE; NI;
Keywords:
molecular beam epitaxy (MBE); transmission electron microscopy (TEM); X-ray diffraction (XRD); alloys; thin films;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
20
Recensione:
Indirizzi per estratti:
Indirizzo: Grange, W Univ Basel, Inst Phys, Klingelbergstr 82, CH-4056 Basel, Switzerland Univ Basel Klingelbergstr 82 Basel Switzerland CH-4056 tzerland
Citazione:
W. Grange et al., "Chemical long-range ordering in a CoPt alloy film grown by molecular beam epitaxy", ACT MATER, 49(8), 2001, pp. 1439-1444

Abstract

The chemical long-range ordering in a CoPt alloy film, grown at 800K onto a MgO (001) substrate by molecular beam epitaxy, has been investigated using both X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM). From HRTEM, we found that this him exhibits a Ll(0)-type order, characterised by a stacking of almost pure cobalt and pure platinum planes along the tetragonal axis parallel to the growth direction. The value of the long-range order parameter deduced from XRD, significantly smallerthan 1, is attributed to the existence of antiphase boundaries along the [001] direction. (C) 2001 Acta Materialia Inc. Published by Elsevier ScienceLtd. All rights reserved.

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Documento generato il 29/09/20 alle ore 22:53:45