Abstract
AlGaAs/GaAs undoped quantum wires (QWRs) grown by organometallic chemical vapour deposition on V-grooved substrates have been studied by photoluminescence (PL) and photoluminescence excitation (PLE) in zero and finite magnetic fields. From the study of the diamagnetic shift of the peaks as a function of wire width and orientation with respect to the magnetic field, we have deduced one-dimensional effective masses for the lowest subband transitions.
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