4:15 PM - 4:30 PM
△ [16p-3A-9] The comparison of spin relaxation in Be-doped GaAs with different Be concentrations at 10-77 K
Keywords:semiconductor,spin
We investigated the spin relaxation times of Be-doped GaAs with different Be concentration by time resolved spin dependent photoluminescence measurement at 10-77 K. As a result, we revealed that Bir-Aronov-Pikus process is dominant at 10-77 K. We also obtained shorter spin relaxation time with higher Be concentration at 50-77 K. The fact implies that Elliot-Yafet process is related at 50-77 K.