Electronic Resource
[S.l.]
:
American Institute of Physics (AIP)
Journal of Applied Physics
79 (1996), S. 5253-5255
ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
The phase equilibria in the system Co–Mn–Sn have been studied with compositions along the join Co–CoMnSn. This is part of an effort to form a macroscopic ferrimagnet with two metallic ferromagnetic phases, Co and Co2MnSn. As-cast arc melted alloys have been made with Co compositions from 33 to 78 at. %. Three different phase and magnetization regions are observed with increasing Co composition. Cobalt becomes the primary phase at more than 71 at. % Co and crystallizes out of a Co2MnSn rich matrix. It is shown from x-ray diffraction analysis and the Tc change with Co compositions that the Co phase in Co2MnSn matrix is probably a Co–Mn solid solution. From the break in the magnetization vs temperature curves of two phase magnets with two different compositions, Curie temperatures are determined as approximately 160 °C and 175 °C for the Co–Mn solid solution phase. The exchange coupling at phase boundary is proposed by the analysis of coercivity vs temperature data. © 1996 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.361302
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