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Ion Beam Mixing and Thermal Demixing of Co/Cu Multilayers

Published online by Cambridge University Press:  10 February 2011

M. Cai ,
T. Veres ,
R. W. Cochrane ,
S. Roorda ,
R. Abdouche  and
M. Sutton
M. Cai
Affiliation:
Département de physique et Groupe de recherche en physique et technologie des couches minces, Université de Montréal, C.P. 6128, succ. Centre-Ville, Montréal, Canada H3C 3J7
T. Veres
Affiliation:
Département de physique et Groupe de recherche en physique et technologie des couches minces, Université de Montréal, C.P. 6128, succ. Centre-Ville, Montréal, Canada H3C 3J7
R. W. Cochrane
Affiliation:
Département de physique et Groupe de recherche en physique et technologie des couches minces, Université de Montréal, C.P. 6128, succ. Centre-Ville, Montréal, Canada H3C 3J7
S. Roorda
Affiliation:
Département de physique et Groupe de recherche en physique et technologie des couches minces, Université de Montréal, C.P. 6128, succ. Centre-Ville, Montréal, Canada H3C 3J7
R. Abdouche
Affiliation:
Department of Physics and Center for Physics of Materials, McGill University, Montrdal, Canada, H3A 2T8.
M. Sutton
Affiliation:
Department of Physics and Center for Physics of Materials, McGill University, Montrdal, Canada, H3A 2T8.
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Abstract

X-ray reflectivity and magnetotransport studies have been used to probe the effects of ion-beam irradiation and subsequent thermal annealing on the structure and giant magnetoresistance (GMR) in Co/Cu multilayers. Low-dose ion bombardment produces interfacial mixing which is accompanied by a systematic suppression of the anti ferromagnetic (AF) coupling and the GMR. For ion doses not exceeding 5 × 1014 ions/cm2, subsequent thermal annealing restores the abrupt interlayer structure as well as the GMR. The combination of low-dose ion bombardment and thermal annealing provides an ex situ technique to modify interface structure reversibly over a gnificant range.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 504: Symposium KK – Atomistic Mechanisms in Beam Synthesis & Irradiation… , 1997 , 197
Copyright
Copyright © Materials Research Society 1998

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References

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