Glassy magnetism in mechanically alloyed Fe35Cr65

Glassy magnetism in mechanically alloyed Fe35Cr65

A mixture of Fe and Cr powders, with the atomic concentration Fe35Cr65, was mechanically alloyed in a high-energy planetary mill for 290h. Upon milling, the X-ray diffraction pattern stopped evolving much earlier than the hysteresis loop. The final product (milled for 290h) showed a strong irreversi...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials Vol. 272-276; pp. 1340 - 1341
Main Authors: De Toro, J.A., Muñoz, T., Muñiz, P., Riveiro, J.M.
Format: Journal Article
Language:English
Published: Elsevier B.V 01-05-2004
Subjects:
Fe–Cr
Magnetic nanoparticles
Mechanical alloying
Spin-glasses
Fe–Cr
Spin-glasses
Magnetic nanoparticles
75.50.Tt
75.50.Bb
75.50.Lk
Mechanical alloying
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Summary:A mixture of Fe and Cr powders, with the atomic concentration Fe35Cr65, was mechanically alloyed in a high-energy planetary mill for 290h. Upon milling, the X-ray diffraction pattern stopped evolving much earlier than the hysteresis loop. The final product (milled for 290h) showed a strong irreversibility between the field-cooled and zero-field cooled magnetisation curves below the maximum exhibited by the former at Tm≈170K, accompanied by a slightly frequency-dependent peak of the AC susceptibility. These features are explained in terms of the blocking of interacting nanoclusters.
Bibliography:SourceType-Scholarly Journals-2
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ObjectType-Conference Paper-1
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SourceType-Conference Papers & Proceedings-1
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ISSN:0304-8853
DOI:10.1016/j.jmmm.2003.12.1162