Abstract
We have studied the effects of the off angle on the formation of AlGaAs quantum wires on vicinal GaAs(110) surfaces misoriented toward (111)A by molecular beam epitaxy. Atomic force microscopy reveals that the 3° off sample has wider terraces and more coherent giant steps than the 6° off sample. The narrower luminescence band for the 3° off sample indicates that the wire structure of this sample is more uniform than that of the 6° off sample. Well-resolved cathodoluminescence images of GaAs quantum wires on the 3° off surface clearly reveal the formation of quantum wires.
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