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Correlation Exchange Length in Nanocrystalline Soft Magnetic Materials Characterized by Electron Holography

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Abstract:

Magnetic ripple structure of Fe84Nb7B9 is studied by electron holography. The correlation exchange length, effective exchange and anisotropy constants are estimated from a field dependence of ripple wavelength. The function of ripple theory is adjusted with a decay constant, which reflects influence of stray field on the ripple structure. A magnetic hardness at elevated temperature is also observed and analyzed.

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Periodical:

Materials Science Forum (Volumes 475-479)

Pages:

4021-4028

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.475-479.4021

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Online since:

January 2005

Authors:

Youhui Gao, Daisuke Shindo

Keywords:

Electron Holography, Exchange Interaction, Magnetic Ripple, Nanocrystalline Soft Magnetic Materials

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© 2005 Trans Tech Publications Ltd. All Rights Reserved

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