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Ferrimagnetic ordering in nanostructured CdFe2O4 spinel

Chinnasamy, CN and Narayanasamy, A and Ponpandian, N and Joseyphus, Justin R and Chattopadhyay, K and Shinoda, B and Jeyadevan, B and Tohji, K and Nakatsuka, K and Greneche, JM (2001) Ferrimagnetic ordering in nanostructured CdFe2O4 spinel. In: Journal Of Applied Physics, 90 (1). pp. 527-529.

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Abstract

Nanostructured CdFe2O4 spinel powders with various grain sizes ranging from 60 to 4 nm were synthesized by ball milling the bulk material. The magnetization measurements at 1 and 9 T reveal a spin-glass-like surface structure and the material is found to have a large anisotropy. Mossbauer studies at 10 K in external magnetic fields of 6 and 8.5 T applied parallel to the direction of gamma rays could clearly show that CdFe2O4 behaves like a mixed spinel on reducing the grain size to nanometer level and exhibits ferrimagnetic ordering. Fe3+ spins at both A and B sites exhibit spin canting.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to American Institute of Physics.
Keywords: Magnetic-Properties;Zinc Ferrite.
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 21 Jul 2009 06:26
Last Modified: 19 Sep 2010 04:54
URI: http://eprints.iisc.ernet.in/id/eprint/16973

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