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Unusual Magnetic Properties of Fe/Ni Bilayers on Cu(100)

Published online by Cambridge University Press:  17 March 2011

B. Schirmer
Affiliation:
I. Physikalisches Institut der RWTH Aachen, D-52056 Aachen, Germany and Institut für Grenzflächenforschung und Vakuumphysik, Forschungszentrum Jülich, D-52428 Jülich, Germany
X. Liu
Affiliation:
I. Physikalisches Institut der RWTH Aachen, D-52056 Aachen, Germany and Institut für Grenzflächenforschung und Vakuumphysik, Forschungszentrum Jülich, D-52428 Jülich, Germany
M. Wuttig
Affiliation:
I. Physikalisches Institut der RWTH Aachen, D-52056 Aachen, Germany and Institut für Grenzflächenforschung und Vakuumphysik, Forschungszentrum Jülich, D-52428 Jülich, Germany
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Abstract

Ultrathin iron films grown on Cu(100) have been found to exhibit a rich variety of structural and magnetic phases. In the present work, Fe/Ni bilayers have been prepared by molecular beam epitaxy to explore novel magnetic phenomena introduced by the ferromagnetic (FM) Ni underlayer. Unusual properties have been observed by measuring the temperature dependent magnetic properties. For 5.3 ML Fe on 7 ML Ni, a temperature dependent exchange coupling in the Fe film has been observed between the FM surface layer and FM interface layer.

Type
Research Article
Copyright
Copyright © Materials Research Society 2001

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