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Magnetic and Transport Behavior of Af-Coupled Layers with a Limited Number of Repetitions

Published online by Cambridge University Press:  03 September 2012

M.M.H. Willekens ,
H.J.M. Swagten ,
A.M. Duif ,
P.J.H. Bloemen ,
R.J.T. Van Kempen ,
S.K.J. Lenczowski  and
W.J.M. De Jonge
M.M.H. Willekens
Affiliation:
Department of Physics; Eindhoven University of Technology; P.O. Box 513, 5600 MB Eindhoven, The Netherlands.
H.J.M. Swagten
Affiliation:
Department of Physics; Eindhoven University of Technology; P.O. Box 513, 5600 MB Eindhoven, The Netherlands.
A.M. Duif
Affiliation:
Department of Physics; Eindhoven University of Technology; P.O. Box 513, 5600 MB Eindhoven, The Netherlands.
P.J.H. Bloemen
Affiliation:
Also at Philips Research Laboratories, Eindhoven, The Netherlands.
R.J.T. Van Kempen
Affiliation:
Department of Physics; Eindhoven University of Technology; P.O. Box 513, 5600 MB Eindhoven, The Netherlands.
S.K.J. Lenczowski
Affiliation:
Also at Philips Research Laboratories, Eindhoven, The Netherlands.
W.J.M. De Jonge
Affiliation:
Department of Physics; Eindhoven University of Technology; P.O. Box 513, 5600 MB Eindhoven, The Netherlands.
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Abstract

We investigated the magnetization behavior of [(Co/Pd) 4-Ru]x samples with perpendicular anisotropy and a limited number of repetitions (x = 1,‥,22). In these systems the Co/Pd Multilayers behave as single magnetic entities. A detailed analysis and comparison of the magnetization curves observed by MOKE and VSM permits us to observe the magnetization reversal and hysteresis of the individual layers and to determine the antiferromagnetic coupling J between each pair of layers. A gradual increase in J is observed in all samples when going from the bottom layer to the top layer. Magnetoresistance curves show the same sharp transitions as the magnetization curves. A clear distinction can be made between an outer layer and an inner layer. These results will be compared with model calculations.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 313: Symposium Q1 – Magnetic Ultrathin Films, Multilayers and Surfaces/Magnetic Interfaces-Physics and Characterizations , 1993 , 129
Copyright
Copyright © Materials Research Society 1993

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References

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