Investigation of Co2FeSi: The Heusler compound with Highest Curie Temperature and Magnetic Moment
Sabine Wurmehl, Gerhard H. Fecher, Hem Chandra Kandpal, Vadim Ksenofontov, Claudia Felser, Hong-Ji Lin
Abstract
This work reports on structural and magnetic investigations of the Heusler compound Co2FeSi. X-Ray diffraction and Mößbauer spectrometry indicate an ordered L21 structure. Magnetic measurements by means of X-ray magnetic circular dichroism and magnetometry revealed that this compound is, currently, the material with the highest magnetic moment (6 μB) and Curie-temperature (1100K) in the classes of Heusler compounds as well as half-metallic ferromagnets.
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