Grünebohm, Anna; Siewert, Mario; Herper, Heike; Gruner, Markus Ernst; Entel, Peter:
A comparative study of (Fe, Fe3Si)/GaAs and Heusler/MgO for spintronics applications
2010
In: Journal of Physics: Conference Series, Band 200 (2010), 072038 (4pp)
Artikel/Aufsatz in Zeitschrift2010Physik
Titel:
A comparative study of (Fe, Fe3Si)/GaAs and Heusler/MgO for spintronics applications
Autor(in):
Grünebohm, AnnaLSF; Siewert, MarioLSF; Herper, HeikeLSF; Gruner, Markus ErnstLSF; Entel, PeterLSF
Erscheinungsjahr
2010
DOI:

Abstract:

Many Heusler-like compounds as well as elemental Fe show large spin polarization in their bulk phase, which makes them possible candidates for spintronic applications. However, it has turned out that the magnetic properties may change significantly if the ferromagnet is grown on a semiconductor. Here, we investigate from first principles the magnetic properties of thin Fe, Fe3Si, and Heusler films on GaAs(110) and MgO(001) substrates, which show rather flat interfaces due to the absence of reconstruction. We observe high spin polarization for the Fe containing systems and both Heusler alloys considered here, even for ultra thin layers. These systems are mainly unaffected by the substrate.