Structure and magnetic state of hydrothermally prepared Mn-Zn ferrite nanoparticles

O. Kaman,D. Kubaniova, K. Knizek,L. Kubickova,M. Klementova, J. Kohout, Z. Jirak

Journal of Alloys and Compounds（2021）

引用 15|浏览17

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摘要

•MnZn ferrite particles with a size of ≈ 12 nm are prepared by hydrothermal synthesis.•Analysis by Mössbauer spectroscopy and neutron diffraction reveals a metastable state.•Mn0.6Zn0.4Fe2O4 particles show a non-equilibrium distribution of Zn and Mn.•Superparamagnetism is studied on time scales of Mössbauer and magnetic measurements.•Transition to superparamagnetic state is easily controlled by Zn content.

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关键词

Neutron diffraction,Mössbauer spectroscopy,Superparamagnetism,Cation distribution,Magnetic nanoparticles,Metastable state

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