Journal
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Volume 262, Issue 1, Pages 128-131Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0304-8853(03)00034-9
Keywords
Fe,Fe oxide; disordered magnetism; exchange bias
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The low-temperature magnetic properties of compacted Fe/Fe oxide samples, consisting of Fe particles (mean size similar to6nm) embedded in a poorly crystallized oxide matrix (similar to80% of the volume), are presented. The results are interpreted in terms of a progressive freezing, with decreasing temperature, of spin clusters at the disordered oxide matrix and considering the exchange coupling between such a phase and the Fe particle moments. (C) 2003 Elsevier Science B.V. All rights reserved.
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