R. Lake et al., INTERFACE ROUGHNESS AND POLAR OPTICAL PHONON-SCATTERING IN IN0.53GA0.47AS ALAS/INAS RTDS/, Semiconductor science and technology, 13(8A), 1998, pp. 163-164
The contributions of interface roughness scattering and polar optical
phonon scattering to the valley current of In0.53Ga0.47As/AlAs/InAs re
sonant tunnelling diodes (RTDs) are theoretically found to be comparab
le. An In0.53Ga0.47As/AlAs/InAS RTD design is suggested to experimenta
lly observe the phonon peak which has never been observed in this mate
rial system. Such a device will provide a calibration point for the th
eoretical calculations.