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Half-metallic ferromagnetism with high magnetic moment and high Curie temperature in CoFeSi
Sabine Wurmehl, Gerhard H. Fecher, Vadim Ksenofontov +4
CoFeSi crystallizes in the ordered L2 structure as proved by X-ray diffraction and Mößbauer spectroscopy. The magnetic moment of CoFeSi was measured to be about …
Investigation of CoFeSi: The Heusler compound with Highest Curie Temperature and Magnetic Moment
Sabine Wurmehl, Gerhard H. Fecher, Hem Chandra Kandpal +3
This work reports on structural and magnetic investigations of the Heusler compound CoFeSi. X-Ray diffraction and Mößbauer spectrometry indicate an ordered structure. Ma…
Slater-Pauling Rule and Curie-Temperature of Co-based Heusler compounds
G. H. Fecher, H. C. Kandpal, S. Wurmehl +2
A concept is presented serving to guide in the search for new materials with high spin polarization. It is shown that the magnetic moment of half-metallic ferromagnets can be calcu…
Design of magnetic materials: CoCrFeAl
Gerhard H. Fecher, Hem Chandra Kandpal, Sabine Wurmehl +5
Doped Heusler compounds CoCrFeAl with varying Cr to Fe ratio were investigated experimentally and theoretically. The electronic structure of the ordered, dope…
Covalent bonding and the nature of band gaps in some half-Heusler compounds
Hem Chandra Kandpal, Claudia Felser, Ram Seshadri
Half-Heusler compounds \textit{XYZ}, also called semi-Heusler compounds, crystallize in the MgAgAs structure, in the space group . We report a systematic examination of b…
Geometric, electronic, and magnetic structure of CoFeSi: Curie temperature and magnetic moment measurements and calculations
Sabine Wurmehl, Gerhard H. Fecher, Hem C. Kandpal +4
In this work a simple concept was used for a systematic search for new materials with high spin polarization. It is based on two semi-empirical models. Firstly, the Slater-Pauling…