4.5 Article

Size-induced effect on nano-crystalline CoFe2O4

期刊

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
卷 320, 期 11, 页码 1729-1734

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ELSEVIER
DOI: 10.1016/j.jmmm.2008.01.021

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nano-particle; cobalt ferrite; strain; magnetization

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Cobalt ferrite (CoFe2O4) nano-particles have been synthesized successfully and we studied the effect of temperature on them. The particles have been annealed at different temperatures ranging from 373 to 1173 K. Significant effect on the physical parameters like crystalline phase, crystallite size, particle size, lattice strain and magnetic properties of the nano-particles has been investigated. The studies have been carried out using a powder X-ray diffractometer (XRD), a transmission electron microscope (TEM) and a vibrating sample magnetometer (VSM). A thorough study of the variation of specific surface area and particle size with annealing is presented here, with their effects on saturation magnetization. (C) 2008 Elsevier B.V. All rights reserved.

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