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- W2013349063 abstract "Magnetic properties of bulk MgMnO3, a cubic defect spinel with the structure 4MgMnO3=3[Mg2+][Mg+2 1/3Mn4+ 4/3◻1/3]O4, are reported. For T > 150 K, magnetization M vs T data fits the Curie-Weiss law with μ ≃ 4μB expected for Mn4+ and θ ≃ −40 K indicating antiferromagnetic Mn4+-Mn4+coupling. For T < 150 K, a blocking temperature TB ≃ 15 K is observed below which coercivity increases with decreasing T. The electron magnetic resonance spectra yield a single broad line with g ≃ 1.9 whose linewidth increases with decreasing T leading to a peak at TB. As predicted in spinels with magnetic ions only on the B-sites, these observations suggest a magnetically frustrated state with short-range order only." @default.
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- W2013349063 date "2011-12-01" @default.
- W2013349063 modified "2023-09-23" @default.
- W2013349063 title "Magnetic frustration and short-range ordering in cubic defect spinel MgMnO3" @default.
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- W2013349063 doi "https://doi.org/10.1063/1.3664910" @default.
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