Fig. 4From: Spin transport in undoped InGaAs/AlGaAs multiple quantum well studied via spin photocurrent excited by circularly polarized lightThe ratio of the spin diffusion coefficient to the mobility of the photoinduced spin-polarized carriers as a function of wavelength at 300 K. The ratio of the spin diffusion coefficient to the mobility of the photoinduced spin-polarized carriers as a function of wavelength at 300 KBack to article page