Issue |
Europhys. Lett.
Volume 38, Number 1, April 1997
|
|
---|---|---|
Page(s) | 61 - 72 | |
Section | Condensed matter: electronic structure, electrical, magnetic and optical properties | |
DOI | https://doi.org/10.1209/epl/i1997-00535-4 | |
Published online | 01 September 2002 |
Magnetic coupling in Fe/Nb multilayers: A neutron reflectivity study
Hahn-Meitner-Institut Berlin, Glienicker Strasse 100, D-14109 Berlin, Germany
Received:
22
August
1996
Accepted:
20
February
1997
Fe/Nb multilayers with different Nb layer thicknesses were
investigated by neutron reflectometry. In accordance with previous work,
we find that magnetic coupling of the Fe layers oscillates between ferro-
and antiferromagnetic as a function of the Nb spacer layer thickness for
. However, for larger Nb thicknesses only antiferromagnetic
ordering, probably caused by dipolar coupling, is observed. Magnetic domains
have lateral extensions of 0.7 to
as derived from off-specular reflectivity;
the domain sizes oscillate correlated with the strength of the coupling.
PACS: 75.70.-i – Magnetic films and multilayers / 75.30.Et – Exchange and superexchange interactions / 61.12.Ex – Neutron scattering techniques (including small-angle scattering)
© EDP Sciences, 1997
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