Abstract
Accurate first-principles FLAPW calculations performed for Mn antisite defects in Co2MnSi alloy show that (i) the low defect formation energy results in a high concentration of Mn antisites during growth, in excellent quantitative agreement with experiments and (ii) half-metallicity - typical of bulk Co2MnSi - is kept, with the disorder resulting in a small increase of the spin-gap. These findings indicate that other kinds of defects or surface effects should be invoked in order to explain the observed reduced spin-polarization.
Original language | English |
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Pages (from-to) | 315-316 |
Number of pages | 2 |
Journal | Journal of Magnetism and Magnetic Materials |
Volume | 272-276 |
Issue number | I |
DOIs | |
Publication status | Published - May 2004 |
Keywords
- Defects
- Half-metallicity
- Heusler compounds
- Spin injection
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics