Structures and Magnetic Properties of Fe/Co Multilayer Films

Fe/Co multilayer films with various Fe layer and Co layer thicknesses ( d Fe , d Co ) were deposited by an rf magnetron sputtering method. The bcc single phase was obtained for films with smaller thicknesses of Co than 2 nm. A mixture of bcc and hcp phases was obtained for films with larger thicknes...

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Bibliographic Details
Published in:Japanese Journal of Applied Physics 1988-11, Vol.27 (11A), p.L2105-L2107
Main Authors: Komuro, Matahiro, Kozono, Yuzoo, Narishige, Shinji, Hanazono, Masanobu, Sugita, Yutaka
Format: Article
Language:English
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Summary:Fe/Co multilayer films with various Fe layer and Co layer thicknesses ( d Fe , d Co ) were deposited by an rf magnetron sputtering method. The bcc single phase was obtained for films with smaller thicknesses of Co than 2 nm. A mixture of bcc and hcp phases was obtained for films with larger thicknesses of Fe and Co than 5 nm. Among the bcc single phase films, d Fe =d Co =1 nm film showed the highest saturation magnetic flux density ( B s ) value. After annealing at 350°C for 1 h, B s of this film increased to 2.40 T. This increase was attributed to interdiffusion of Fe and Co.
ISSN:0021-4922
1347-4065
DOI:10.1143/JJAP.27.L2105