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- W1985907845 abstract "Abstract By high-resolution electron beam lithography and wet chemical etching extended electron waveguides with lengths up to 20 μm were fabricated on modulation-doped GaAs/AlGaAs heterostructures showing conductance quantization. For short electron waveguides 15 well-resolved steps in the conductance trace are observable. Conductance quantization is observed up to wire lengths comparable to the transport mean free path of electrons in the unconstrained two-dimensional electron gas, indicating that scattering due to fabrication induced defects is negligible in the present structures. By an analysis of temperature-dependent measurements the one-dimensional subband spacings are determined to be greater than 10 meV." @default.
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- W1985907845 date "2000-05-01" @default.
- W1985907845 modified "2023-10-01" @default.
- W1985907845 title "Quantized conductance in extended electron waveguides fabricated on shallow etched modulation-doped GaAs/AlGaAs heterostructures" @default.
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- W1985907845 doi "https://doi.org/10.1016/s1386-9477(00)00055-2" @default.
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