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Author Chinnasamy, C. N. ♦ Narayanasamy, A. ♦ Ponpandian, N. ♦ Joseyphus, R. Justin ♦ Chattopadhyay, K. ♦ Shinoda, K. ♦ Jeyadevan, B. ♦ Tohji, K. ♦ Nakatsuka, K. ♦ Greneche, J. -M.
Sponsorship (US)
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Publisher The American Physical Society
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ ANISOTROPY ♦ GRAIN SIZE ♦ MAGNETIC FIELDS ♦ MAGNETIZATION ♦ MILLING ♦ PHYSICS ♦ SPIN ♦ SPINELS
Abstract Nanostructured CdFe{sub 2}O{sub 4} 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. Moessbauer 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 CdFe{sub 2}O{sub 4} behaves like a mixed spinel on reducing the grain size to nanometer level and exhibits ferrimagnetic ordering. Fe{sup 3+} spins at both A and B sites exhibit spin canting. {copyright} 2001 American Institute of Physics.
ISSN 00218979
Educational Use Research
Learning Resource Type Article
Publisher Date 2001-07-01
Publisher Place United States
Journal Journal of Applied Physics
Volume Number 90
Issue Number 1


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