[6a-A404-1~11] 13.7 Nanostructures, quantum phenomena, and nano quantum devices

[6a-A404-3] Spin relaxation of GaSb/AlSb multiple quantum wells

〇Yuichi Nakamura¹, Lianhe Li², Kizuku Yamada¹, Takuya kamezaki¹, Edmund Linfield², Atsushi Tackeuchi¹ (1.Waseda Univ., 2.Univ of Leeds)

Keywords:spin relaxation, GaSb/AlSb multiple quantum wells, pump and probe measurements

In this research, we investigated the picosecond spin relaxation in GaSb/AlSb multiple quantum wells observed by time-resolved pump and probe reflection measurements. As a result, the spin relaxation time was 38 ps at 10 K, and negative temperature dependence of the spin relaxation time was observed between 10 and 200 K. Because there is the least report of the spin relaxation in multiple quantum wells (MQWs) containing Sb, I think this research has the significant meaning that can contribute to elucidation of the spin relaxation mechanism.