期刊
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
卷 25, 期 4, 页码 619-626出版社
SPRINGER
DOI: 10.1007/s10904-014-0119-8
关键词
ZnFe2O4; Co2+ and Cr3+ substitution; Magnetic properties; Magnetic nanomaterials; Chemical synthesis
资金
- Fatih University under BAP [P50021301-Y (3146)]
- Swedish Research Council [VR-SRL 2013-6780]
Nanoparticles of CoxZn1-xFeCrO4 (x = 0.0-1.0) ferrites have been synthesized by the nitrate citrate microwave assisted route. The structural and magnetic properties were investigated by means of X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, vibrating sample magnetometer. X-ray powder diffraction patterns confirm that the samples possess single phase cubic spinel structure. It was found that by increasing the amount of cobalt loading, the crystallite size increases [20-55 nm with increasing the Co content (x)]. The introduction of Cr3+ ions at octahedral B sites results in the dilution of the magnetization at the B site, which will reduce the saturation magnetization. In the opposite way, replacement of non-magnetic Zn2+ ions with ferromagnetic Co2+ ones increases the saturation magnetization of the samples further.
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