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Structural order and magnetic anisotropy transition in Co/Fe multilayers

Carbucicchio, M.; Bennett, S.; Berry, Frank; Prezioso, M.; Rateo, M. and Turilli, G. (2003). Structural order and magnetic anisotropy transition in Co/Fe multilayers. Journal of Applied Physics, 93(10) pp. 7631–7633.

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DOI (Digital Object Identifier) Link: http://dx.doi.org/10.1063/1.1543915
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Abstract

Co/Fe multilayers were electron-beam evaporated in ultrahigh vacuum onto quartz substrates keeping the Co layer thickness (10 nm) constant and changing that of Fe (10-30 nm). For Fe layer thicknesses up to 24 nm, the magnetization substantially lies in the film plane and shows a uniaxial magnetic anisotropy. The coercive field measured along the easy axis is similar to10 Oe, and the x-ray reflectivity patterns show a superlattice behavior. For a Fe layer thickness equal to 30 nm, the in-plane texture strongly decreases, the coercive field increases up to similar to100 Oe, the magnetization direction forms an out-of-plane angle of similar to36degrees and a stripe magnetic domain structure takes place. The observed in-plane anisotropy and the changing in the magnetic order as a function of the iron layer thickness is discussed and justified, assuming that the growth of the first Co layer occurs by the nucleation of ordered zones, influencing the subsequent layer order via exchange interaction.

Item Type: Journal Article
Copyright Holders: 2003 American Institute of Physics
ISSN: 0021-8979
Extra Information: This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
Academic Unit/Department: Science > Life, Health and Chemical Sciences
Item ID: 5755
Depositing User: David Shuker
Date Deposited: 09 Nov 2006
Last Modified: 15 May 2013 11:22
URI: http://oro.open.ac.uk/id/eprint/5755
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