Co2MnSi Heusler alloy is a well-known half-metallic ferromagnet exhibiting a perfect spin-polarization (100%) and high Curie temperature ( ~ 985 K). Here, using surface sensitive spin- and angle-resolved photoelectron spectroscopy, the authors investigate the temperature evolution of the spin-polarized electronic structure of Co2MnSi films and reveal the surface-specific spin depolarization mechanism around room temperature.
- Kazuki Sumida
- Masaaki Kakoki
- Akio Kimura