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Investigation of magnetization reversal in Sm-Fe-Cu(Zr)-Ga-C nanocomposite magnets

被引：22
作者：
Zhang, SY
Zhang, HW
Shen, BG
Zhao, T
de Boer, FR
Buschow, KHJ
机构：
[1] Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, Beijing 100080, Peoples R China
[2] Chinese Acad Sci, Ctr Condensed Matter Phys, Beijing 100080, Peoples R China
[3] Univ Amsterdam, Van der Waals Zeeman Inst, NL-1018 XE Amsterdam, Netherlands
来源：
JOURNAL OF APPLIED PHYSICS | 2000年 / 87卷 / 03期
关键词：
D O I：
10.1063/1.372027
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A comparative study has been performed concerning the microstructure and the magnetization reversal behavior of nearly single-phase Sm2Fe14.5Cu0.5Ga2C2 and two-phase exchange-coupled Sm2Fe14.5Cu0.5Ga2C2/alpha-Fe and Sm2Fe14.25Zr0.25Cu0.5Ga2C2/alpha-Fe synthesized by melt spinning and annealing. A few percent of Zr substitution proved to be effective in refining the microstructure and enhancing exchange-spring behavior after melt spinning and annealing. All samples show remanence enhancement, the value of M-r/M-s being the largest for the sample containing Zr. Measurements of the reversible susceptibility show a large reversible magnetization in the two-phase materials. For the Zr-containing sample, a more detailed analysis of the temperature dependence of the exchange-spring behavior was made. (C) 2000 American Institute of Physics. [S0021-8979(00)10103-3].
引用
收藏
页码：1410 / 1414
页数：5
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