All-electrical time-resolved spin generation and spin manipulation in n-InGaAs

Abstract

We demonstrate all-electrical spin generation and subsequent manipulation by two successive electric field pulses in an n-InGaAs heterostructure in a time-resolved experiment at zero external magnetic field. The first electric field pulse along the $[1\bar{1}0]$ crystal axis creates a current induced spin polarization (CISP) which is oriented in the plane of the sample. The subsequent electric field pulse along [110] generates a perpendicular magnetic field pulse leading to a coherent precession of this spin polarization with 2-dimensional electrical control over the final spin orientation. Spin precession is probed by time-resolved Faraday rotation. We determine the build-up time of CISP during the first field pulse and extract the spin dephasing time and internal magnetic field strength during the spin manipulation pulse.

5 pages, 4 figures

References in corpus (7)

• Current induced electron spin polarization in strained semiconductors
• Measurement of Rashba and Dresselhaus spin-orbit magnetic fields
• Current-Induced Polarization and the Spin Hall Effect at Room Temperature
• Electrical initialization and manipulation of electron spins in an L-shaped strained n-InGaAs channel
• Mapping spin-orbit splitting in strained InGaAs epilayers
• All-electrical time-resolved spin generation and spin manipulation in n-InGaAs
• Two-dimensional optical control of electron spin orientation by linearly polarized light in InGaAs

Cited by in corpus (11)

• Electrical spin orientation, spin-galvanic and spin-Hall effects in disordered two-dimensional systems
• Macroscopic transverse drift of long current-induced spin coherence in two-dimensional electron gases
• All-electrical time-resolved spin generation and spin manipulation in n-InGaAs
• Unambiguous determination of spin dephasing times in ZnO
• Spin and charge transport in graphene-based spin transport devices with Co/MgO spin injection and spin detection electrodes
• Resonant optical control of the electrically-induced spin polarization by periodic excitation
• Current-induced spin polarization in InGaAs and GaAs epilayers with varying doping densities
• Phase effects due to previous pulses in time-resolved Faraday rotation measurements
• Time-resolved lateral spin-caloric transport of optically generated spin packets in n-GaAs
• Triggering phase-coherent spin packets by pulsed electrical spin injection across an Fe/GaAs Schottky barrier
• Trembling motion of electrons driven by Larmor spin precession