Fig. 1From: Spin transport in undoped InGaAs/AlGaAs multiple quantum well studied via spin photocurrent excited by circularly polarized lightThe schematic diagram of the total spin-related current, AHE and ACPGE, and the spectra of common photoinduced currents. a The schematic diagram of the geometry of the experiment. The external electric field is applied via the strip electrodes. The total spin-related current is measured by the two circle electrodes. b A schematic diagram of the AHE. c A schematic diagram of the ACPGE. d The spectra of common photoinduced currents on the circle electrodes at 300 K. The red circle dots and black square dots denote the currents under reversed electric fields. The blue triangle dots denote the power corresponding to each wavelengthBack to article page