TY - JOUR T1 - MODULATION-DOPED (ALGA)AS/GAAS QUANTUM WELL STRUCTURE WITH HIGH ELECTRON SHEET DENSITY JO - ELECTRON LETT PY - 1989/08/17 AU - POWELL AL AU - ROBERTS JS AU - ROCKETT PI AU - FOSTER TJ AU - EAVES L ED - VL - 25 IS - 17 SP - 1147 EP - 1148 Y2 - 2024/12/20 ER -