Measurement of electron-hole friction in an n-doped GaAs/AlGaAs quantum well using optical transient grating spectroscopy

Abstract

We use phase-resolved transient grating spectroscopy to measure the drift and diffusion of electron-hole density waves in a semiconductor quantum well. The unique aspects of this optical probe allow us to determine the frictional force between a two-dimensional Fermi liquid of electrons and a dilute gas of holes. Knowledge of electron-hole friction enables prediction of ambipolar dynamics in high-mobility electron systems.

to appear in PRL

References in corpus (3)

• Semiconductor Spintronics
• Coulomb Drag in the Exciton Regime in Electron-Hole Bilayers
• Anomalous Coulomb drag in electron-hole bilayers

Cited by in corpus (10)

• Theory of coupled spin-charge transport due to spin-orbit interaction in inhomogeneous two-dimensional electron liquids
• Doppler velocimetry of spin propagation in a two-dimensional electron gas
• Topological exciton condensate of imbalanced electrons and holes
• Interacting drift-diffusion theory for photoexcited electron-hole gratings in semiconductor quantum wells
• Intrinsic exciton transport and recombination in single-crystal lead bromide perovskite
• Ambipolar spin transport in (111) GaAs quantum wells
• Direct imprinting of arbitrary spin textures using programmable structured light in a semiconductor two-dimensional electron gas
• Microscopic theory for the Doppler velocimetry of spin propagation in semiconductor quantum wells
• Ultrafast spin dynamics in the proximate quantum spin liquid α-RuCl3
• Helicoidal excitonic phase in an electron-hole double layer system