DocumentCode
853252
Title
Magnetic and structural investigation of heat treated ion beam sputtered amorphous Co74Fe6B15Si5 films
Author
Harris, V.G. ; Oliver, S.A. ; Nowak, W.B. ; Vittoria, C. ; Culbertson, R.J. ; Elam, W.T. ; Kim, K.H.
Author_Institution
Northeastern Univ., Boston, MA, USA
Volume
26
Issue
5
fYear
1990
fDate
9/1/1990 12:00:00 AM
Firstpage
1459
Lastpage
1461
Abstract
As-deposited and annealed specimens of ion-beam-sputtered amorphous Co74Fe6B15Si5 thin films were examined to explore the correlation between changes in magnetic properties and atomic structure. Specimens were characterized magnetically, by traditional AC and DC techniques, and structurally, via conversion-electron extended X-ray absorption fine structure analysis. Results show significant ordering of the higher-order atomic shells around the transition metal ions well below the crystallization temperature. This ordering evolves into body-centered-cubic configuration around both the Co and Fe ions. Increases in nearest-neighbor peak positions in the EXAFS Fourier transforms were observed to correlate with increasing annealing temperatures. Evidence is presented for the role of the ordering in the observed magnetic changes
Keywords
EXAFS; annealing; boron alloys; cobalt alloys; crystal atomic structure of alloys; ferromagnetic properties of substances; iron alloys; magnetic properties of amorphous substances; magnetic thin films; silicon alloys; sputtered coatings; Co74Fe6B15Si5; EXAFS Fourier transforms; amorphous; annealing; atomic structure; conversion-electron extended X-ray absorption fine structure analysis; hysteresis; ion beam sputtered; magnetisation; thin films; Amorphous magnetic materials; Amorphous materials; Annealing; Electromagnetic wave absorption; Ion beams; Iron; Magnetic films; Magnetic properties; Semiconductor thin films; Temperature;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.104410
Filename
104410
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