Speakers: Alex Matos–Abiague (Universität Regensburg, Německo)
Place: Meeting room -- Building A, Institute of Physics ASCR, Cukrovarnická 10, Praha 6.
Presented in English
Organisers:
Department of Spintronics and Nanoelectronics
The microscopic structure of spin-orbit fields at interfaces such as Fe/GaAs is uncovered from first principles. A symmetry based me- thod allows obtaining the spin-orbit fields — both their magnitude and orientation — for a generic Bloch state, from the electronic band structure for any in-plane magnetization orientation. It is demonstrated that the spin-orbit fields depend not only on the electric field across the interface, but also surprisingly strongly on the Fe magnetization orien- tation. The possible formation of helical interface states due to strong spin-orbit fields at nonmagnetic interfaces is also briefly discussed.
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