NATURAL OXIDE FORMATION ON COBALT INVESTIGATED WITH THE MAGNETOOPTICAL KERR-EFFECT

Authors
RELLINGHAUS B DEAVILA SF ARMELLES G BEYERS R KELLOCK A WELLER D
Citation
B. Rellinghaus et al., NATURAL OXIDE FORMATION ON COBALT INVESTIGATED WITH THE MAGNETOOPTICAL KERR-EFFECT, IEEE transactions on magnetics, 33(5), 1997, pp. 3238-3240
Citations number
13
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Applied
Journal title
IEEE transactions on magnetics → ACNP
ISSN journal
00189464
Volume
33
Issue
5
Year of publication
1997
Part
1
Pages
3238 - 3240
Database
ISI
SICI code
0018-9464(1997)33:5<3238:NOFOCI>2.0.ZU;2-Y
Abstract
We have studied the magneto-optical Kerr effect (MOKE) of air-annealed Co thin films. Structural investigations reveal the formation of a do uble layered Co oxide (fee Co3O4)/Co metal structure. MOKE spectra, me asured in the photon energy range 0.8 less than or equal to E-Ph less than or equal to 5.5 eV, show charactistic changes as function of the annealing time and temperature. In particular, we observe the occurran ce of resonance type enhancements with peak Kerr rotations of theta(K) = -5.5 deg. The experimental spectra can be quantitatively reproduced using bilayer optical stack calculations.