Slater-Pauling rule and Curie temperature of Co2-based Heusler compounds

Slater-Pauling rule and Curie temperature of Co2-based Heusler compounds

A concept is presented serving to guide in the search for materials with high spin polarization. It is shown that the magnetic moment of half-metallic ferromagnets can be calculated from the generalized Slater-Pauling rule. Furthermore, it was found empirically that the Curie temperature of Co2-base...

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Veröffentlicht in:Journal of applied physics 2006-04, Vol.99 (8)
Hauptverfasser: Fecher, Gerhard H., Kandpal, Hem C., Wurmehl, Sabine, Felser, Claudia, Schönhense, Gerd
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container_issue 8
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container_title Journal of applied physics
container_volume 99
creator Fecher, Gerhard H.
Kandpal, Hem C.
Wurmehl, Sabine
Felser, Claudia
Schönhense, Gerd
description A concept is presented serving to guide in the search for materials with high spin polarization. It is shown that the magnetic moment of half-metallic ferromagnets can be calculated from the generalized Slater-Pauling rule. Furthermore, it was found empirically that the Curie temperature of Co2-based Heusler compounds can be estimated from a seemingly linear dependence on the magnetic moment. As a successful application of these simple rules, it was found that Co2FeSi is, actually, the half-metallic ferromagnet exhibiting the highest magnetic moment and the highest Curie temperature measured for a Heusler compound.
doi_str_mv 10.1063/1.2167629
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title Slater-Pauling rule and Curie temperature of Co2-based Heusler compounds
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