1304.5452 (Pawel Bruski et al.)

All-electrical spin injection and detection in the Co2FeSi/GaAs hybrid
system in the local and non-local configuration    [PDF]

Pawel Bruski, Yori Manzke, Rouin Farshchi, Oliver Brandt, Jens Herfort, Manfred Ramsteiner

We demonstrate the electrical injection and detection of spin-polarized electrons in the Co2FeSi/GaAs hybrid system using lateral transport structures. Spin valve signatures and characteristic Hanle curves are observed both in the nonlocal and the local configuration. The comparatively large magnitude of the local spin valve signal and the high signal-to-noise ratio are attributed to the large spin polarization at the Fermi energy of Co2FeSi in the well-ordered L21 phase.

View original: http://arxiv.org/abs/1304.5452