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Quantum wires as Luttinger liquids: experiment

Wegscheider, Werner ; Rother, Martin ; Ertl, Frank ; Deutschmann, Rainer A. ; Bichler, Max ; Abstreiter, Gerhard


The low-temperature ballistic transport properties of quantum wires prepared by the cleaved edge overgrowth method in the GaAs/AlGaAs material system are presented. As the Fermi energy in these one-dimensional (1D) systems is varied by application of a gate voltage a series of quantized conductance plateaus is observed. The plateau values significantly deviate from integer multiples of 2·e 2 /h ...


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