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Hysteresis loop shift behavior of CoFeSiB amorphous ribbons

Published online by Cambridge University Press:  31 January 2011

J. He ,
L. Zhou ,
D.L. Zhao  and
X.L. Wang
J. He*
Affiliation:
Division of Functional Material Research, Central Iron & Steel Research Institute, Beijing, People's Republic of China, 100081
L. Zhou
Affiliation:
Division of Functional Material Research, Central Iron & Steel Research Institute, Beijing, People's Republic of China, 100081
D.L. Zhao
Affiliation:
Division of Functional Material Research, Central Iron & Steel Research Institute, Beijing, People's Republic of China, 100081
X.L. Wang
Affiliation:
Division of Functional Material Research, Central Iron & Steel Research Institute, Beijing, People's Republic of China, 100081
*
a) Address all correspondence to this author. e-mail: jun50543@yahoo.com
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Abstract

Exchange bias phenomena of amorphous CoFeSiB ribbons have been probed at room temperature. The dramatic loop shift away from zero point occurred when the ribbons were annealed in ambient atmosphere with longitudinal field. The possible crystalline phases grown in our ribbons are discussed based on the grazing incidence diffraction and energy dispersive x-ray spectroscopy. The magnetic domain configuration of ribbon surface was also observed to make clear the dependence of bias behavior on the induced magnetic anisotropy in the ribbon. A simple phenomenological explanation was given to discuss the exchange bias in ribbons.

Keywords

AmorphousAnnealingMagnetic properties
Type
Articles
Information
Journal of Materials Research , Volume 24 , Issue 4 , April 2009 , pp. 1607 - 1610
Copyright
Copyright © Materials Research Society 2009

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