Spin and orbital magnetic moments of ultrathin Fe films on GaAs(100) studied by X-ray magnetic circular dichroism

Authors
Xu, YB Tselepi, M Dudzik, E Guertler, CM Vaz, CAF Wastlbauer, G Freeland, DJ Bland, JAC van der Laan, G
Citation
Yb. Xu et al., Spin and orbital magnetic moments of ultrathin Fe films on GaAs(100) studied by X-ray magnetic circular dichroism, J MAGN MAGN, 226, 2001, pp. 1643-1645
Citations number
14
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
ISSN journal
03048853 → ACNP
Volume
226
Year of publication
2001
Part
2
Pages
1643 - 1645
Database
ISI
SICI code
0304-8853(200105)226:<1643:SAOMMO>2.0.ZU;2-G
Abstract
The spin and orbital magnetic moments of 33 and 8 ML epitaxial BCC Fe films grown on GaAs(1 0 0)-4 x 6 have been measured using X-ray magnetic circula r dichroism. Both samples have approximately the same spin moments of about 2.0 mu (B) close to that of the bulk value, which confirms that there are no magnetic dead layers at the interface. A giant orbital moment enhancemen t of about 300% was observed in the 8 ML film, which may be partially due t o an increased degree of localization of electronic states at the Fe/GaAs i nterface. (C) 2001 Elsevier Science B.V. All rights reserved.