Pal, M. ; Brahma, P. ; Chakravorty, D. (1996) Magnetic and electrical properties of nickel-zinc ferrites doped with bismuth oxide Journal of Magnetism and Magnetic Materials, 152 (3). pp. 370-374. ISSN 0304-8853
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/030488...
Related URL: http://dx.doi.org/10.1016/0304-8853(95)00483-1
Abstract
Bismuth-substituted nickel-zinc ferrites have been synthesized by a solution route in the composition range Ni0.5Zn0.5BixFe2.0-xO4, with 0 ≤ x ≤ 0.2. X-ray diffraction data indicate that bismuth most likely exists in the Bi5+ state within the spinel structure. The saturation magnetization is found to decrease as the bismuth concentration is enhanced. This can be explained on the basis of two sublattices in the spinel structure, with Bi5+ ions replacing some of the Fe2+ ions. The variation of the electrical conductivity with temperature is explained using small polaron hopping between Fe2+ and Fe3+ sites.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 7394 |
| Deposited On: | 25 Oct 2010 11:41 |
| Last Modified: | 28 May 2011 04:45 |
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