Electronic Resource
Springer
Hyperfine interactions
122 (1999), S. 47-57
ISSN:
1572-9540
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Investigations of the abnormal magnetic properties of cupric oxide reveal discrepancies between both experimental results and theoretical explanations. Through iron-doping cupric oxide by ball-milling and thermal treatments we have been able to obtain Mössbauer results that are an experimental evidence of semi-disorder. The magnetic hyperfine field of the Cu0.995Fe0.005O solid solution displays a spin-glass-like thermal dependence that undergoes two transitions, one at about 150 K, that can be assigned to the long-range ordering of the cupric oxide spins, and the second one at some temperature between 4.2 and 15 K, that exposes either the freezing of the Fe3+ spins into a local canted state or of magnetic clusters in the CuO matrix.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1012633303744
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