Magnetic viscosity effects on the determination of the switching field distribution in CoNiCr thin films

In this work we examine the effect of magnetic viscosity on the determination of the switching field distribution (SFD) in hard magnetic materials. We find that measuring at a slower rate broadens the measured SFD and leads to larger values of the Néel fluctuation field. The effect of intergranular...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2004-05, Vol.272-276, p.E517-E519
Main Authors: Jones, B.A, el Hilo, M, O’Grady, K
Format: Article
Language:English
Subjects:
Fluctuation fields
Magnetic viscosity
Switching field distribution
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Summary:In this work we examine the effect of magnetic viscosity on the determination of the switching field distribution (SFD) in hard magnetic materials. We find that measuring at a slower rate broadens the measured SFD and leads to larger values of the Néel fluctuation field. The effect of intergranular exchange coupling is also discussed.
ISSN:0304-8853
DOI:10.1016/j.jmmm.2003.12.334