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The total photocurrent measured in heterostructure is well fitted with Eq. (1), where the dashed line and the dotted line represent CPGE and LPGE currents, respectively. Inset: the schematic diagram of the measurement geometry.
The amplitude of the CPGE current as a function of the uniaxial strain in heterostructure. The solid line is fitted linearly. Inset: the schematic diagram of the uniaxial strain equipment, where , , and are the central deformation, the sample thickness, and the length of the sample, respectively.
The R/D ratios of the 2DEG in heterostructures with various Al compositions between 15% and 36%.
The ratios of Rashba and Dresselhaus coefficients (R/D ratios) and Hall parameters in heterostructures with various Al compositions between 15% and 36%.
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