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△ [16p-3A-1] Spin relaxation of GaAs/AlGaAs/AlAs type-II tunneling bi-quantum-well
Keywords:tunneling bi-quantum-well,type-II,spin relaxation
In this study, we have investigated the spin relaxation time in GaAs/AlGaAs/ AlAs type-II tunneling bi-quantum-well by pump and probe measurement at room temperature.The spin relaxation time was obtained to be 27.8 ps for the sample with 3.4-nm-thick barriers. The spin relaxation becomes faster as the tunneling becomes faster. It is assumed that spin relaxation was accelerated by tunneling.