Two-dimensional imaging of the spin-orbit effective magnetic field

Abstract

We report on spatially resolved measurements of the spin-orbit effective magnetic field in a GaAs/InGaAs quantum-well. Biased gate electrodes lead to an electric-field distribution in which the quantum-well electrons move according to the local orientation and magnitude of the electric field. This motion induces Rashba and Dresselhaus effective magnetic fields. The projection of the sum of these fields onto an external magnetic field is monitored locally by measuring the electron spin-precession frequency using time-resolved Faraday rotation. A comparison with simulations shows good agreement with the experimental data.

6 pages, 4 figures

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Cited by in corpus (14)

• Spin dynamics in semiconductors
• Magneto-transport in a mesoscopic ring with Rashba and Dresselhaus spin-orbit interactions
• Tuning of the spin-orbit interaction in a quantum dot by an in-plane magnetic field
• Fano resonances and electron spin transport through a two-dimensional spin-orbit-coupled quantum ring
• Spin-orbit interaction and spin relaxation in a two-dimensional electron gas
• Alternative method for the quantitative determination of Rashba- and Dresselhaus spin-orbit interaction using the magnetization
• Magnetic breakdown of cyclotron orbits in systems with Rashba and Dresselhaus spin-orbit coupling
• Experimental determination of Rashba and Dresselhaus parameters and $g^{\ast }$-factor anisotropy via Shubnikov-de Haas oscillations
• Spin and orbital mechanisms of the magneto-gyrotropic photogalvanic effects in GaAs/AlGaAs quantum well structures
• Anisotropic universal conductance fluctuations in disordered quantum wires with Rashba and Dresselhaus spin-orbit interaction and applied in-plane magnetic field
• Resonant optical control of the electrically-induced spin polarization by periodic excitation
• Time dependent configuration interaction simulations of spin swap in spin orbit coupled double quantum dots
• Spin-orbit Hanle effect in high-mobility quantum wells
• Spin separation and exchange for quantum dots in the Overhauser field