Spin-orbit fields in asymmetric (001) quantum wells

Abstract

We measure simultaneously the in-plane electron g-factor and spin relaxation rate in a series of undoped inversion-asymmetric (001)-oriented GaAs/AlGaAs quantum wells by spin-quantum beat spectroscopy. In combination the two quantities reveal the absolute values of both the Rashba and the Dresselhaus coefficients and prove that the Rashba coefficient can be negligibly small despite huge conduction band potential gradients which break the inversion symmetry. The negligible Rashba coefficient is a consequence of the 'isomorphism' of conduction and valence band potentials in quantum systems where the asymmetry is solely produced by alloy variations.

References in corpus (10)

• Experimental Separation of Rashba and Dresselhaus Spin-Splittings in Semiconductor Quantum Wells
• Measurement of Rashba and Dresselhaus spin-orbit magnetic fields
• Giant Spin Relaxation Anisotropy in Zinc-Blende Heterostructures
• Observation of Spin Relaxation Anisotropy in Semiconductor Quantum Wells
• Oscillatory D'yakonov-Perel' spin dynamics in two dimensional electron gases
• Detection of large magneto-anisotropy of electron spin dephasing in a high-mobility two-dimensional electron system in a $[001]$ GaAs/AlGaAs quantum well
• Electric field control of spin-orbit splittings in GaAs/AlGaAs coupled quantum wells
• Absence of the Rashba effect in undoped asymmetric quantum wells
• Spin-orbit interaction and spin relaxation in a two-dimensional electron gas
• Spin-orbit coupling induced by a mass gradient

Cited by in corpus (17)

• Full Electrical Control of the Electron Spin Relaxation in GaAs Quantum Wells
• Detecting induced $p\pm ip$ pairing at the Al-InAs interface with a quantum microwave circuit
• Symmetry Breaking of the Persistent Spin Helix in Quantum Transport
• Interface Contributions to the Spin-Orbit Interaction Parameters of Electrons at the (001) GaAs/AlGaAs Interface
• Spin polarization, dephasing and photoinduced spin diffusion in (110)-grown two-dimensional electron systems
• Growth Direction Dependence of the Electron Spin Dynamics in {111} GaAs Quantum Wells
• Alternative method for the quantitative determination of Rashba- and Dresselhaus spin-orbit interaction using the magnetization
• Electron g-Factor Anisotropy in Symmetric (110)-oriented GaAs Quantum Wells
• Spin and orbital mechanisms of the magneto-gyrotropic photogalvanic effects in GaAs/AlGaAs quantum well structures
• G-factor of electrons in gate-defined quantum dots in a strong in-plane magnetic field
• Experimental determination of Rashba and Dresselhaus parameters and $g^{\ast }$-factor anisotropy via Shubnikov-de Haas oscillations
• Effect of Dresselhaus spin-orbit coupling on spin dephasing in asymmetric and macroscopically symmetric (110)-grown quantum wells
• Asymmetric $g$ tensor in low-symmetry two-dimensional hole systems
• Proximity-induced gapless superconductivity in two-dimensional Rashba semiconductor in magnetic field
• Spin-orbit Hanle effect in high-mobility quantum wells
• Photoluminescence of double quantum wells: asymmetry and excitation laser wavelength effects
• Spin precession and spin waves in a chiral electron gas: beyond Larmor's theorem