Room temperature superparamagnetism in amorphous Fe82Mn4B4Zr10 alloy

Structural characterization and electron spin resonance study of amorphous Fe82Mn4B4Zr10 ribbon with Curie temperature of 262K is presented. According to X-ray diffraction analysis and transmission electron microscopy the alloy represents matrix with embedded micrograin heterogeneities, both existin...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2007-03, Vol.310 (2), p.2471-2473
Main Authors: ULYANOV, A. N, SHIN, G. M, YU, S. C, YOO, S. I
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Diamagnetism, paramagnetism and superparamagnetism
Electron paramagnetic resonance and relaxation
Exact sciences and technology
Magnetic properties and materials
Magnetic resonances and relaxations in condensed matter, mössbauer effect
Physics
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Summary:Structural characterization and electron spin resonance study of amorphous Fe82Mn4B4Zr10 ribbon with Curie temperature of 262K is presented. According to X-ray diffraction analysis and transmission electron microscopy the alloy represents matrix with embedded micrograin heterogeneities, both existing in amorphous state. Size of the heterogeneities is about 50nm, they show superparamagnetic state up to 500K.
ISSN:0304-8853
DOI:10.1016/j.jmmm.2006.11.017