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 journalArticlepeer-review

41 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 languageEnglish
Pages (from-to)527-529
Number of pages3
JournalJournal of Applied Physics
Volume90
Issue number1
DOIs
Publication statusPublished - 2001 Jul

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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