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Kuckelhaus, S., Reis, S.C., Carniero, M.F., Todesco, A.C., Oliveira, D.M., Lima, E.C., Morais, P.C., Azevedo, R.B. and Lacava, Z.G.M. (2004) In Vivo Investigation of Cobalt Ferrite Based Magnetic Fluid and Magnetoliposomes Using Morphological Tests. Journal of Magnetism and Magnetic Materials, 2402, 272.

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.