skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Influence of FeCo-interlayer thickness on remanence and coercivity in SmCo/FeCo/SmCo triple-layer films

Abstract

The dependence of reduced remanence (Mr/Ms) and coercivity of Sm{sub 22}Co{sub 78}/Fe{sub 65}Co{sub 35}/Sm{sub 22}Co{sub 78} triple-layer films on Fe{sub 65}Co{sub 35} soft-magnetic interlayer thickness, d, was systematically investigated. All the hysteresis loops of the triple-layer films exhibit a single-phase behavior, reflecting a strong exchange coupling between soft- and hard-magnetic phases. Mr/Ms shows a monotonic increase with increasing the Fe{sub 65}Co{sub 35} thickness, d, and the coercivity exists a peak with increasing d. From the plot of the interaction-based deviation parameter {Delta}M (H) of two principle remanence curves (isothermal remanence magnetization and dc-demagnetization remanence) versus applied field, H, a negative interaction profile was observed, indicating a negligible inter-granular exchange coupling within hard-magnetic grains.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Central Iron and Steel Research Inst., Beijing (CN)
OSTI Identifier:
20000766
Resource Type:
Journal Article
Journal Name:
IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers)
Additional Journal Information:
Journal Volume: 35; Journal Issue: 5Pt2; Conference: 1999 international magnetics conference (Intermag '99), Kyongju (KR), 05/18/1999--05/21/1999; Other Information: PBD: Sep 1999; Journal ID: ISSN 0018-9464
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; MAGNETIC PROPERTIES; COERCIVE FORCE; THICKNESS; LAYERS; IRON ALLOYS; COBALT ALLOYS; SAMARIUM ALLOYS; PERMANENT MAGNETS

Citation Formats

Liu, X.H., Yan, G., Cui, L.Y., Zhou, S.X., Zheng, W., Wang, A.L., and Chen, J.C. Influence of FeCo-interlayer thickness on remanence and coercivity in SmCo/FeCo/SmCo triple-layer films. United States: N. p., 1999. Web. doi:10.1109/20.800515.
Liu, X.H., Yan, G., Cui, L.Y., Zhou, S.X., Zheng, W., Wang, A.L., & Chen, J.C. Influence of FeCo-interlayer thickness on remanence and coercivity in SmCo/FeCo/SmCo triple-layer films. United States. doi:10.1109/20.800515.
Liu, X.H., Yan, G., Cui, L.Y., Zhou, S.X., Zheng, W., Wang, A.L., and Chen, J.C. Wed . "Influence of FeCo-interlayer thickness on remanence and coercivity in SmCo/FeCo/SmCo triple-layer films". United States. doi:10.1109/20.800515.
@article{osti_20000766,
title = {Influence of FeCo-interlayer thickness on remanence and coercivity in SmCo/FeCo/SmCo triple-layer films},
author = {Liu, X.H. and Yan, G. and Cui, L.Y. and Zhou, S.X. and Zheng, W. and Wang, A.L. and Chen, J.C.},
abstractNote = {The dependence of reduced remanence (Mr/Ms) and coercivity of Sm{sub 22}Co{sub 78}/Fe{sub 65}Co{sub 35}/Sm{sub 22}Co{sub 78} triple-layer films on Fe{sub 65}Co{sub 35} soft-magnetic interlayer thickness, d, was systematically investigated. All the hysteresis loops of the triple-layer films exhibit a single-phase behavior, reflecting a strong exchange coupling between soft- and hard-magnetic phases. Mr/Ms shows a monotonic increase with increasing the Fe{sub 65}Co{sub 35} thickness, d, and the coercivity exists a peak with increasing d. From the plot of the interaction-based deviation parameter {Delta}M (H) of two principle remanence curves (isothermal remanence magnetization and dc-demagnetization remanence) versus applied field, H, a negative interaction profile was observed, indicating a negligible inter-granular exchange coupling within hard-magnetic grains.},
doi = {10.1109/20.800515},
journal = {IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers)},
issn = {0018-9464},
number = 5Pt2,
volume = 35,
place = {United States},
year = {1999},
month = {9}
}