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

被引：304
|
作者：
CEBOLLADA, A
WELLER, D
STICHT, J
HARP, GR
FARROW, RFC
MARKS, RF
SAVOY, R
SCOTT, JC
机构：
[1] BIOSYM TECHNOL INC,SAN DIEGO,CA 92121
[2] IBM CORP,DIV RES,ALMADEN RES CTR,SAN JOSE,CA 95120
来源：
PHYSICAL REVIEW B | 1994年 / 50卷 / 05期
关键词：
D O I：
10.1103/PhysRevB.50.3419
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A chemical-ordering-induced peak in the polar magneto-optical Kerr effect spectra of FePt compounds is found to be in quantitative agreement with predictions based on ab initio magneto-optical calculations. Experimental spectra of epitaxial molecular-beam-epitaxy grown FePt(001) films reveal a more than twofold enhancement of the Kerr rotation if full chemical ordering is present. A spectral feature at 2-eV photon energy shows a peak Kerr rotation of up to approximately 0.8-degrees which is strongly correlated with the presence of perpendicular magnetic anisotropy in ordered compound films.
引用
收藏
页码：3419 / 3422
页数：4
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