Two-Phase Magnet in the Co/Co2MnSn System

Title
Two-Phase Magnet in the Co/Co2MnSn System
Authors
Taewan KimHye-in YimHyun-Yong Lee이경일
Keywords
two-phase magnet; exchange coupling; Heusler alloy; metallic phase
Issue Date
2011-03
Publisher
Journal of Magnetics
Citation
VOL 16, NO 1, 10-14
Abstract
This study reports on Co/Co2MnSn two-phase magnets. The Co/Co2MnSn two-phase magnet has Co precipitates in a Co2MnSn Heusler alloy matrix, in which the two phases are exchange-coupled at the phase boundary. The as-casted Co/Co2MnSn system, which has Co-Mn solid solution precipitates in a Co2MnSn Heusler alloy matrix, showed that the Co solid solution precipitates are crystallographically coherent and there is exchange coupling at the phase boundary. To form pure Co precipitates by removal of Mn solute atoms in Co- Mn solid solution, annealing was carried out 48 hours at 870oC. After annealing, the low T c and low magnetization phase of the Co-Mn solid solution became a high Tc and high magnetization phase of hexagonal Co
URI
http://pubs.kist.re.kr/handle/201004/41935
ISSN
1226-1750
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KIST Publication > Article
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