Magnetic structure of Co1-xMnx alloys - art. no. 214403

Citation
D. Wu et al., Magnetic structure of Co1-xMnx alloys - art. no. 214403, PHYS REV B, 6321(21), 2001, pp. 4403
Citations number
29
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
0163-1829 → ACNP
Volume
6321
Issue
21
Year of publication
2001
Database
ISI
SICI code
0163-1829(20010601)6321:21<4403:MSOCA->2.0.ZU;2-R
Abstract
Co1-xMnx thin films epitaxially grown on GaAs(001) have been studied using reflection high-energy electron diffraction, x-ray diffraction, and the mag neto-optical Kerr effect. The result shows that Co-rich films are body-cent ered cubic and ferromagnetic, and Mn-rich ones are face-centered cubic and antiferromagnetic. However, the film structure and magnetism at x similar t o0.5 show strongly thickness-dependent behavior. The magnetic phases of ord ered Co1-xMnx alloys (x = 0,1/4,1/2,3/4,1) in both bcc and fcc structures h ave also been investigated by a first-principles linearized augmented plane -wave calculation in the local-spin-density approximation. With the help of the calculated results, the correlation established in experiment between the structure and magnetism of Co1-xMnx alloys is better understood.