Spin-orbit interaction and spin relaxation in a two-dimensional electron gas

Abstract

Using time-resolved Faraday rotation, the drift-induced spin-orbit Field of a two-dimensional electron gas in an InGaAs quantum well is measured. Including measurements of the electron mobility, the Dresselhaus and Rashba coefficients are determined as a function of temperature between 10 and 80 K. By comparing the relative size of these terms with a measured in-plane anisotropy of the spin dephasing rate, the D'yakonv-Perel' contribution to spin dephasing is estimated. The measured dephasing rate is significantly larger than this, which can only partially be explained by an inhomogeneous g-factor.

6 pages, 5 figures

References in corpus (17)

• Spintronics: Fundamentals and applications
• Coherent control of a single electron spin with electric fields
• Non-ballistic spin field-effect transistor
• Measurement of Rashba and Dresselhaus spin-orbit magnetic fields
• Giant Spin Relaxation Anisotropy in Zinc-Blende Heterostructures
• High temperature gate control of quantum well spin memory
• Performance of a spin-based insulated gate field effect transistor
• Observation of Spin Relaxation Anisotropy in Semiconductor Quantum Wells
• Out-of-plane spin polarization from in-plane electric and magnetic fields
• Symmetry and spin dephasing in (110)-grown quantum wells
• Detection of large magneto-anisotropy of electron spin dephasing in a high-mobility two-dimensional electron system in a $[001]$ GaAs/AlGaAs quantum well
• Temperature dependence of D'yakonov-Perel' spin relaxation in zinc blende semiconductor quantum structures
• Dependence of spin dephasing on initial spin polarization in a high-mobility two-dimensional electron system
• Electric field control of spin-orbit splittings in GaAs/AlGaAs coupled quantum wells
• Two-dimensional imaging of the spin-orbit effective magnetic field
• Resonant spin polarization and spin current in a two-dimensional electron gas
• Physical Limits of the ballistic and non-ballistic Spin-Field-Effect Transistor: Spin Dynamics in Remote Doped Structures

Cited by in corpus (8)

• Spin dynamics in semiconductors
• Gate-controlled spin-orbit interaction in a parabolic GaAs/AlGaAs quantum well
• Relaxation of excited spin, orbital, and valley qubit states in single electron silicon quantum dots
• Role of linear and cubic terms for the drift-induced Dresselhaus spin-orbit splitting in a two-dimensional electron gas
• Spin-orbit fields in asymmetric (001) quantum wells
• Anisotropic Pauli spin-blockade effect and spin-orbit interaction field in an InAs nanowire double quantum dot
• Electrical control of spin relaxation anisotropy during drift transport in a two-dimensional electron gas
• Anisotropy of spin coherence in high mobility quantum wells with arbitrary magnetic fields