Journal
INTERNATIONAL NANO LETTERS
Volume 5, Issue 4, Pages 183-186Publisher
SPRINGER INTERNATIONAL PUBLISHING AG
DOI: 10.1007/s40089-015-0153-8
Keywords
Magnetic properties; Hydrothermal; Cobalt ferrite nanoparticles
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In this study, the magnetic properties of nanocrystalline cobalt ferrite synthesized via the hydrothermal method have been investigated. The structural properties of the produced powders were investigated using X-ray diffraction (XRD) and scanning electron microscopy (SEM). The observed XRD pattern confirmed the spinel/cubic structure of the prepared cobalt ferrite. The SEM pictures show that the simple hydrothermal method produces uniform sphere-shaped nanopowders. Moreover, infrared spectroscopy was used to confirm the formation of cobalt ferrite particles. Magnetic hysteresis was measured using a vibrating sample magnetometer in a maximum field of 10 kOe. The magnetization of the prepared nanoparticles was investigated, and the saturation magnetization (M-s), remanence (M-r), and coercivity (H-c) were derived from the hysteresis loops. The results revealed that the cobalt ferrite nanoparticles synthesized via the simple hydrothermal method exhibit superior magnetic properties.
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