Published December 5, 2006 | Version v1
Journal article

Magnetic structure and interlayer exchange coupling in spring magnets-studied via nuclear resonant scattering

  • 1. Institut fuer Physik, Universitaet Rostock, August-Bebel-Str. 55, 18055 Rostock (Germany)
  • 2. Deutsches Elektronen Synchrotron DESY, Notkestrasse 85, 22607 Hamburg (Germany)
  • 3. National Institute for Materials Physics, PO Box MG-7, 77125 Bucharest (Romania)

Description

Magnetic properties of FePt/Ag/Fe and FePt/Pd/Fe layer systems, prepared by magnetron sputtering, were investigated using the nuclear resonant forward scattering of synchrotron radiation. This technique allows the accurate determination of magnetic hyperfine field orientations by using an extremely thin 57Fe probe layer suitably embedded within the soft magnetic layer. From an evaluation of these measurements within a one-dimensional micromagnetic model, the interlayer exchange coupling constants between the magnetically hard (FePt) and soft (Fe) layers were determined as function of the Ag and Pd interlayer thickness. The interlayer thickness dependence of the bilinear coupling constants provides evidence for the superposition of Ruderman-Kittel-Kasuya-Yoshida coupling and a magnetostatic interaction between the magnetic layers

Additional details

Identifiers

DOI
10.1016/j.tsf.2006.03.035;
PII
S0040-6090(06)00454-8;

Publishing Information

Journal Title
Thin Solid Films
Journal Volume
515
Journal Issue
4
Journal Page Range
p. 2531-2534
ISSN
0040-6090
CODEN
THSFAP

Optional Information

Copyright
Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.