Journal
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Volume 312, Issue 2, Pages 294-297Publisher
ELSEVIER
DOI: 10.1016/j.jmmm.2006.10.609
Keywords
semimagnetic semiconductor; spin glass; spinel
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The low-temperature magnetic properties of MnIn2S4 have been studied using AC magnetic susceptibility and magnetization experiments. High-temperature susceptibility fits indicate the presence of antiferromagnetic interactions. Low-field magnetization data show a peak at 5.6 +/- 0.1 K, below which strong irreversibility is observed between zero-field-cooled (ZFC) and field-cooled (FC) cycles suggesting that the observed peak corresponds to a spin-glass-like transition instead of the antiferromagnetic one previously reported. Further evidence of this magnetic state comes from AC susceptibility data at different frequencies. The in-phase component chi'(T) exhibits the behavior expected of spin glasses, i.e. a shift of the cusp to higher temperatures for higher frequencies. (c) 2006 Elsevier B.V. All rights reserved.
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