Current-Controlled Spin Precession of Quasistationary Electrons in a Cubic Spin-Orbit Field

• DOI: 10.1103/physrevlett.116.196802
• Publication Date: 2016-05-09T22:08:21Z
• Authors: P. Altmann; F. G. G. Hernandez; G. J. Ferreira; M. Kohda; C. Reichl; W. Wegscheider; G. Salis
• Keywords: Precession; Larmor precession; Orbit (dynamics); Spin diffusion

Space- and time-resolved measurements of spin drift diffusion are performed on a GaAs-hosted two-dimensional electron gas. For spins where forward is compensated by backward diffusion, we find precession frequency in absence an external magnetic field. The depends linearly the velocity explained cubic Dresselhaus spin-orbit interaction, for which leads to angle twice that diffuse same distance.