Alloy scattering in quantum wires

Alloy scattering is studied for quantum wires of Ga0.47In0.53As/InP, Ga0.47In0.53As/AI0.48In0.52As, Ga/As/AI0.3Ga0.7As and GaAs/Ga0.5In0.5P systems. Electron mobility is also evaluated for different dimensions of these structures for the temperatures of 40, 77 and 300 K. It is found that alloy-scattering-limited mobility is lower than acoustic-phonon-scattering-limited mobility in Ga0.47In0.53As systems. Even in GaAs systems alloy scattering is significant for wire diameters less than 10 nm