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27 October 2020
 
  » arxiv » cond-mat/9612177

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On nonuniversal conductance quantization in high-quality quantum wires
Anton Yu. Alekseev ; Vadim V. Cheianov ;
Date 19 Dec 1996
Subject Mesoscopic Systems and Quantum Hall Effect | cond-mat.mes-hall
AbstractWe present a theoretical analysis of recent experimental results of Yacoby et al. on transport properties of high quality quantum wires. We suggest an explanation of observed deviations of the conductance from the universal value $2e^2/h$ per channel in the wire. We argue that at low temperatures and biases the deviation can be a consequence of anomalously enhanced backscattering of electrons entering the 2DEG from the wire and is not connected to intrinsic properties of 1DEG.
Source arXiv, cond-mat/9612177
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