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Magnetotransport phenomena in single AlGaAs/GaAs quantum wires grown on laterally patterned substrates

Tornow, M. ; Weiss, Dieter ; Klitzing, K. ; Shitara, T. ; Kurtenbach, A. ; Eberl, K.


Single, sub-micrometer wide quantum wires have been fabricated using molecular beam epitaxy on mesa-etched GaAs substrates, where the GaAs wire is embedded in AlGaAs. By using a Hall bar pattern, potential probes were directly attached to the wires while grown. To avoid problems associated with anisotropic etching and regrowth, the wire structures were oriented along the 100 ...


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