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Figure 4 | Nanoscale Research Letters

Figure 4

From: Spin photocurrent spectra induced by Rashba- and Dresselhaus-type circular photogalvanic effect at inter-band excitation in InGaAs/GaAs/AlGaAs step quantum wells

Figure 4

The comparison of different spectra in the In 0.15 Ga 0.85 As/GaAs/Al 0.3 Ga 0.7 As step QWs measured at room temperature. The spectrum of common photocurrent under dc bias (denoted as j0), the imaginary part of RD spectrum Δ r/r, reflectance spectrum Δ R/R, and the normalized CPGE current induced by SIA and BIA in the step QWs.

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