DocumentCode
1029996
Title
Effects of deposition and oxidation processes on magnetic and structural properties of iron oxide films
Author
Chen, Mao-Min ; Ortiz, Carmen ; Lim, Grace ; Sigsbee, Ray ; Castillo, Gilbert ; Sigsbee, R. ; Castillo, G.
Author_Institution
IBM Magnetic Recording Institute
Volume
23
Issue
5
fYear
1987
fDate
9/1/1987 12:00:00 AM
Firstpage
3423
Lastpage
3425
Abstract
Osmium doped (0.75 at.%) iron oxide films were reactively sputter deposited onto Si substrates in an Ar + O2 gas environment. The magnetic and structural properties of the as-deposited films depend critically on deposition process parameters such as O2 flow rate, chamber pressure, substrate temperature, RF power and substrate rotation speed. The deposition process window has been determined for which only the spinel structure was observed. X-ray diffraction indicated films grown at a low O2 flow rate of 3.0 sccm and a substrate temperature of 230°C had more random orientation and a lattice parameter closer to that of the bulk Fe3 O4 value. This condition produced a high saturation moment of 410 emu/cc. Increasing O2 flow rate induced preferential
Keywords
Argon; Iron; Magnetic films; Magnetic properties; Oxidation; Radio frequency; Saturation magnetization; Semiconductor films; Temperature dependence; X-ray diffraction;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.1987.1065549
Filename
1065549
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