Journal
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Volume 355, Issue -, Pages 184-187Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jmmm.2013.12.013
Keywords
Nanoglass; Exchange bias; CuO nanoparticles; Magnetic anisotropy
Funding
- Department of Science and Technology, New Delhi
- Council of Scientific and Industrial Research, New Delhi
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Nanodimensional silica based glass containing iron ions was prepared within the compressed pellet of CuO nanoparicles. The nanocomposite material showed exchange bias effect. This effect arose due to Ferromagnetic iron doped CuO phase and antiferromagnetic CuO interface formation within the nanocomposite during the synthesis process. Coercive held as a function or temperature was fitted with Arhenius-Neel equation and extracted blocking temperature was 511 K. The value of effective anisotropy constant for the nanocomposite was found to be 3.64x10(5) erg/cc. (C) 2013 Elsevier B.V. All rights reserved.
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