Exchange interaction in rapidly solidified nanocrystalline RE-(Fe/Co)-B hard magnetic alloys

Z. W. Liu; D. C. Zeng; R. V. Ramanujan; X. C. Zhong; H. A. Davies

doi:10.1063/1.3072717

Exchange interaction in rapidly solidified nanocrystalline RE-(Fe/Co)-B hard magnetic alloys

Z. W. Liu, D. C. Zeng, R. V. Ramanujan, X. C. Zhong, H. A. Davies

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

The exchange interactions for rapidly solidified (Nd/Pr)(Fe/Co)B hard magnetic alloys with remanence enhancement were studied by analyzing characteristic magnetic curves and Henkel plots. The exchange coupling can be improved by increasing soft phase content within hard matrix. With increasing temperature, the exchange interaction is enhanced due to the increased exchange length. An increased recoil susceptibility was found for the alloys with improved exchange coupling. Analysis of the microstructure parameters indicated that Co substituting Fe and introducing soft α -(Fe,Co) phase not only reduce the stray field effects but also enhance the exchange interaction.

Original language	English
Article number	07A736
Journal	Journal of Applied Physics
Volume	105
Issue number	7
DOIs	https://doi.org/10.1063/1.3072717
Publication status	Published - 2009
Externally published	Yes

ASJC Scopus Subject Areas

General Physics and Astronomy

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title = "Exchange interaction in rapidly solidified nanocrystalline RE-(Fe/Co)-B hard magnetic alloys",

abstract = "The exchange interactions for rapidly solidified (Nd/Pr)(Fe/Co)B hard magnetic alloys with remanence enhancement were studied by analyzing characteristic magnetic curves and Henkel plots. The exchange coupling can be improved by increasing soft phase content within hard matrix. With increasing temperature, the exchange interaction is enhanced due to the increased exchange length. An increased recoil susceptibility was found for the alloys with improved exchange coupling. Analysis of the microstructure parameters indicated that Co substituting Fe and introducing soft α -(Fe,Co) phase not only reduce the stray field effects but also enhance the exchange interaction.",

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AU - Liu, Z. W.

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AU - Davies, H. A.

PY - 2009

Y1 - 2009

N2 - The exchange interactions for rapidly solidified (Nd/Pr)(Fe/Co)B hard magnetic alloys with remanence enhancement were studied by analyzing characteristic magnetic curves and Henkel plots. The exchange coupling can be improved by increasing soft phase content within hard matrix. With increasing temperature, the exchange interaction is enhanced due to the increased exchange length. An increased recoil susceptibility was found for the alloys with improved exchange coupling. Analysis of the microstructure parameters indicated that Co substituting Fe and introducing soft α -(Fe,Co) phase not only reduce the stray field effects but also enhance the exchange interaction.

AB - The exchange interactions for rapidly solidified (Nd/Pr)(Fe/Co)B hard magnetic alloys with remanence enhancement were studied by analyzing characteristic magnetic curves and Henkel plots. The exchange coupling can be improved by increasing soft phase content within hard matrix. With increasing temperature, the exchange interaction is enhanced due to the increased exchange length. An increased recoil susceptibility was found for the alloys with improved exchange coupling. Analysis of the microstructure parameters indicated that Co substituting Fe and introducing soft α -(Fe,Co) phase not only reduce the stray field effects but also enhance the exchange interaction.

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Exchange interaction in rapidly solidified nanocrystalline RE-(Fe/Co)-B hard magnetic alloys

Abstract

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