ENHANCED MAGNETOOPTICAL KERR-EFFECT IN SPONTANEOUSLY ORDERED FEPT ALLOYS - QUANTITATIVE AGREEMENT BETWEEN THEORY AND EXPERIMENT

Authors
CEBOLLADA A WELLER D STICHT J HARP GR FARROW RFC MARKS RF SAVOY R SCOTT JC
Citation
A. Cebollada et al., ENHANCED MAGNETOOPTICAL KERR-EFFECT IN SPONTANEOUSLY ORDERED FEPT ALLOYS - QUANTITATIVE AGREEMENT BETWEEN THEORY AND EXPERIMENT, Physical review. B, Condensed matter, 50(5), 1994, pp. 3419-3422
Citations number
18
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
50
Issue
5
Year of publication
1994
Pages
3419 - 3422
Database
ISI
SICI code
0163-1829(1994)50:5<3419:EMKISO>2.0.ZU;2-F
Abstract
A chemical-ordering-induced peak in the polar magneto-optical Kerr eff ect spectra of FePt compounds is found to be in quantitative agreement with predictions based on ab initio magneto-optical calculations. Exp erimental spectra of epitaxial molecular-beam-epitaxy grown FePt(001) films reveal a more than twofold enhancement of the Kerr rotation if f ull chemical ordering is present. A spectral feature at 2-eV photon en ergy shows a peak Kerr rotation of up to approximately 0.8-degrees whi ch is strongly correlated with the presence of perpendicular magnetic anisotropy in ordered compound films.