LETTER TO THE EDITOR: Optically detected cyclotron resonance measurements in Al0.48In0.52As MBE layers
The authors report the first direct measurements of the conduction band electron effective mass in MBE grown Al0.48In0.52As on InP by the technique of optically detected cyclotron resonance (ODCR). The effective mass value derived is m*=0.10 m0+or-0.01 m0. A value for the carrier momentum relaxation time is also deduced, indicating a lattice-limited mobility for this material of the order of 105 cm2 V-1 s-1.