THE MAGNETIC-PROPERTIES AND MICROSTRUCTURE OF STRONTIUM FERRITE FILMSWITH PERPENDICULAR AND INPLANE MAGNETIC-ANISOTROPY

Authors
ACHARYA BR PRASAD S VENKATARAMANI N ABARRA EN SUZUKI T
Citation
Br. Acharya et al., THE MAGNETIC-PROPERTIES AND MICROSTRUCTURE OF STRONTIUM FERRITE FILMSWITH PERPENDICULAR AND INPLANE MAGNETIC-ANISOTROPY, IEEE transactions on magnetics, 33(5), 1997, pp. 3640-3642
Citations number
6
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
2
Pages
3640 - 3642
Database
ISI
SICI code
0018-9464(1997)33:5<3640:TMAMOS>2.0.ZU;2-4
Abstract
The texture and the easy axis of magnetization of Strontium ferrite (S rFe12O19) thin films can be controlled by changing power of rf sputter ing, In-plane magnetic anisotropy is developed at a sputtering power o f 330 W (7.5 W/cm(2)), whereas strong perpendicular magnetic anisotrop y (Ku similar to 1 x 10(6) erg/cc) is induced at 60 W power (1.3 W/cm( 2)). Further control over coercivity and morphology san be achieved by changing the ratio R, between oxygen and in the sputtering gas, Coerc ivity decreases with R. Films deposited without oxygen exhibit higher coercivity and less intergranular interaction as compared to films spu ttered with oxygen.