Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe

MA: Fachverband Magnetismus

MA 24: Spinelectronics / Spin Injection in Heterostructures

MA 24.1: Vortrag

Donnerstag, 25. März 2010, 10:15–10:30, H22

Spin-orbit coupling fields in Fe/GaAs junctions — •Martin Gmitra¹, Alex Matos-Abiague¹, Claudia Ambrosch-Draxl², and Jaroslav Fabian¹ — ¹Univesity of Regensburg, 93040 Regensburg, Germany — ²University of Leoben, 8700 Leoben, Austria

The existence of the spin-orbit fields induced by the interface structure in Fe/GaAs junctions is proven from first-principles calculations. While the underlying symmetry of the fields follows that of the interface, the specific realization of the symmetry depends on the electron momentum and energy. The calculated atomic-layer-resolved expectation values of the Bloch states' spins show that the spin-orbit fields peak at the GaAs side of the interface. The employed technique is applicable to ferromagnetic junctions in general. This work has been supported by SFB 689.