EFFECT OF SUBMONOLAYER COVERAGE ON MAGNETIC-ANISOTROPY OF ULTRATHIN COBALT FILMS M CO/AU(111) WITH M=AU, CU, PD/

Citation
P. Beauvillain et al., EFFECT OF SUBMONOLAYER COVERAGE ON MAGNETIC-ANISOTROPY OF ULTRATHIN COBALT FILMS M CO/AU(111) WITH M=AU, CU, PD/, Journal of applied physics, 76(10), 1994, pp. 6078-6080
Citations number
17
Categorie Soggetti
Physics, Applied
Journal title
ISSN journal
00218979
Volume
76
Issue
10
Year of publication
1994
Part
2
Pages
6078 - 6080
Database
ISI
SICI code
0021-8979(1994)76:10<6078:EOSCOM>2.0.ZU;2-1
Abstract
Using in situ polar magneto-optical Kerr-effect measurements, the vari ation of the Kerr rotation and magnetic anisotropy of a (0001)Co ultra thin film on a (111)Au substrate has been precisely recorded, during t he first stages of the growth of an overlayer of metal M=Au, Cu, and P d. As reported earlier, a drastic increase of the magnetic anisotropy was observed, with a peak around 1 monolayer of overlayer thickness. F rom a careful study of the variation of the remanent Kerr rotation, it could be shown that only the interface contribution to the anisotropy changes with the overlayer thickness, while the bulk contribution rem ains mostly constant. The overall behavior can be interpreted in terms of electronic effects in the metal overlayer, acting on the interface anisotropy via band hybridization at the interface.