Journal
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Volume 389, Issue -, Pages 113-119Publisher
ELSEVIER
DOI: 10.1016/j.jmmm.2015.04.013
Keywords
Calcination; X-ray diffraction; Magnetic properties; Electron paramagnetic resonance
Funding
- Ministry of Higher Education of Malaysia under the FRGS grant
- Universiti Putra Malaysia under the RUGS grant
- Malayer University of Iran
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In this research,a novel chromium-iron oxide (Cr2Fe6O12) nanoparticle with rhombohedral symmetry was prepared by a simple thermal treatment method. Heat treatment was conducted using an electric cylinder furnace in an air atmosphere at temperatures between 773 and 923 K, where the produced chromium-ironoxide nanoparticles had different crystallite sizes ranging from 9 to 20 nm. The products were well characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), field emission scanning electron microscope (FESEM), X-ray analysis (EDXA), and Fourier transform infrared spectroscopy (FT-IR). The samples demonstrated a magnetic behavior with unpaired electron spins, which was confirmed by using vibrating sample magnetometer (VSM) and electron paramagnetic resonance (EPR) spectroscopy. (C) 2015 Elsevier B.V. All rights reserved.
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