Ferrimagnetic ordering in nanostructured CdFe2O4 spinel

C. N. Chinnasamy; A. Narayanasamy; N. Ponpandian; R. Justin Joseyphus; K. Chattopadhyay; K. Shinoda; B. Jeyadevan; K. Tohji; K. Nakatsuka; J. M. Greneche

doi:10.1063/1.1377297

Ferrimagnetic ordering in nanostructured CdFe₂O₄ spinel

C. N. Chinnasamy, A. Narayanasamy, N. Ponpandian, R. Justin Joseyphus, K. Chattopadhyay, K. Shinoda, B. Jeyadevan, K. Tohji, K. Nakatsuka, J. M. Greneche

Research output: Contribution to journal › Article › peer-review

46 Citations (Scopus)

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. Mössbauer 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.

Original language	English
Pages (from-to)	527-529
Number of pages	3
Journal	Journal of Applied Physics
Volume	90
Issue number	1
DOIs	https://doi.org/10.1063/1.1377297
Publication status	Published - 2001 Jul

ASJC Scopus subject areas

Physics and Astronomy(all)

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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. M{\"o}ssbauer 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.",

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AU - Chinnasamy, C. N.

AU - Narayanasamy, A.

AU - Ponpandian, N.

AU - Joseyphus, R. Justin

AU - Chattopadhyay, K.

AU - Shinoda, K.

AU - Jeyadevan, B.

AU - Tohji, K.

AU - Nakatsuka, K.

AU - Greneche, J. M.

PY - 2001/7

Y1 - 2001/7

N2 - 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. Mössbauer 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.

AB - 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. Mössbauer 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.

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Ferrimagnetic ordering in nanostructured CdFe₂O₄ spinel

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