Abstract
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.
Highlights
Ferrite nanoparticles have been used for a variety of applications due to their potential electromagnetic properties
The results revealed that the cobalt ferrite nanoparticles synthesized via the simple hydrothermal method exhibit superior magnetic properties
hexagonal close packed (HCP) holds a stable phase at room temperature, whereas face-centered cubic (FCC) is only stable at temperatures above 450 °C [4]
Summary
Ferrite nanoparticles have been used for a variety of applications due to their potential electromagnetic properties. Abstract In this study, the magnetic properties of nanocrystalline cobalt ferrite synthesized via the hydrothermal method have been investigated. The observed XRD pattern confirmed the spinel/ cubic structure of the prepared cobalt ferrite.
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