[Th-P] Emerging Materials and Nanoscale Devices

[Th-P-51] Reversible Electron Density Control in InAs/AlGaSb Single Quantum Wells via Low-Temperature Multi-Wavelength LED Illumination

〇Kenta Ishibashi¹, Takafumi Akiho², Hiroshi Irie², Yusuke Nakazawa², Norio Kumada², Koji Muraki², Kyoichi Suzuki¹ (1. Fukuoka Inst. Tech. (Japan), 2. Basic Res. Labs, NTT, Inc. (Japan))

Reversible control of electron density in InAs/AlGaSb single quantum wells at low temperatures was achieved via persistent photoconductivity induced by alternating visible and infrared illumination, enabling repeated tuning over a wide density range without an electric gate.