Title of article
The metamorphosis of heterometallic trinuclear antiferromagnetic complexes into nano-sized superparamagnetic spinels
Author/Authors
Inna V. Vasylenko، نويسنده , , Konstiantyn S. Gavrylenko، نويسنده , , Vladimir G. Il’yin، نويسنده , , Vladimir Golub، نويسنده , , Galina Goloverda، نويسنده , , Vladimir Kolesnichenko، نويسنده , , Anthony W. Addison، نويسنده , , Vitaly V. Pavlishchuk، نويسنده ,
Issue Information
دوهفته نامه با شماره پیاپی سال 2010
Pages
6
From page
47
To page
52
Abstract
Thermal decomposition of the trinuclear heterometallic oxoacetates [Fe2M(μ3-O)(CH3COO)6(H2O)3] has been used as a single-precursor method for synthesis of the spinel-structured ternary oxides MFe2O4 (M = MnII, CoII, and NiII). This facile process occurring at 320 °C results in the formation of nanocrystalline (7–20 nm) highly pure stoichiometric ferrites in quantitative yield. The magnetic properties of these nanoparticulate ferrites were studied in the 10–300 K temperature range, revealing superparamagnetic behavior for the Ni and Mn particles and ferrimagnetic behavior for the Co ones at room temperature. Their blocking temperatures follow the order: CoFe2O4 > MnFe2O4 > NiFe2O4.
Keywords
Magnetic materials , Magnetometry , Chemical synthesis , Magnetic properties
Journal title
Materials Chemistry and Physics
Serial Year
2010
Journal title
Materials Chemistry and Physics
Record number
1062325
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