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Zhang, Y., Liu, Y., Fei, C., Yang, Z., Lu, Z., Xiong, R., Yin, D. and Shi, J. (2010) The Temperature Dependence of Magnetic Properties for Cobalt Ferrite Nano Particles by the Hydrothermal Method. Journal of Applied Physics, 108, Article IA: 084312.
http://dx.doi.org/10.1063/1.3499289

has been cited by the following article:

• TITLE: Effect of Bi3+ Ion Substitution on Magnetic Properties of Cobalt Nano Ferrites Prepared by Sol-Gel Combustion Method

  AUTHORS: Naraavula Suresh Kumar, Katrapally Vijaya Kumar

  KEYWORDS: Bi-Co Nano Ferrites, Sol-Gel Combustion Method, TEM and VSM

  JOURNAL NAME: Soft Nanoscience Letters, Vol.6 No.3, July 27, 2016

  ABSTRACT: Bismuth substituted cobalt nano ferrites with the chemical composition Co Bix Fe2-x O4 (x = 0.00, 0.05, 0.10, 0.15, 0.20 & 0.25) were prepared by sol-gel combustion method. The phase identification of prepared samples is characterised by X-ray powder diffraction (XRD) method, which confirms the formation of a single phase fcc spinal structure. The mean crystallite sizes of all prepared samples were obtained within the range of 21 (±5) nm. Transmission Electron Microscopy (TEM) images also confirmed the crystallite size of all the synthesised samples was in nano range. With the effect of Bi3+ ion substitution on spinal cobalt ferrite, the magnetic properties were investigated by using Vibration Sample Magnetometer (VSM). The obtained hysteresis (M-H) curves of all the samples were analysed under the applied magnetic field of range ± 10 K Oe at 300 K. The magnetic properties such as saturation magnetisation (Ms), remnant magnetization (Mr) and coercivity (Hc) values are tabulated, which show a decrease in trend as the bismuth ion concentration increases. This is due to the addition of Bi3+ ion in the place of Fe3+ ion (octahedral site) and hence the Bi3+-Fe3+ ion interaction predominates as compared with the Fe2+-Fe3+ ion interaction. The data obtained from magnetic studies, the variation among the magnetic properties have been investigated for all the prepared samples.