Related Experiment Video
Updated: Jul 6, 2026

Atomically Traceable Nanostructure Fabrication
Published on: July 17, 2015
Luttinger-liquid behavior in weakly disordered quantum wires
E Levy1, A Tsukernik, M Karpovski
1School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 69978, Israel. eyallevy@post.tau.ac.il
Abstract:
We have measured the temperature dependence of the conductance in long V-groove quantum wires fabricated in GaAs/AlGaAs heterostructures. Our data are consistent with recent theories developed within the framework of the Luttinger-liquid model, in the limit of weakly disordered wires. We show that, for the relatively low level of disorder in our quantum wires, the value of the interaction parameter g congruent with 0.66, which is the expected value for GaAs. However, samples with a higher level of disorder show conductance with stronger temperature dependence, which does not allow their treatment in the framework of perturbation theory. Fitting such data with perturbation-theory models leads inevitably to wrong (lower) values of g.
More Related Videos
Related Concept Videos
The de Broglie Wavelength
Trends in Lattice Energy: Ion Size and Charge
Band Theory
The energy difference between these bands is known as the band gap.
Conductor, Semiconductor,...
First Law: Particles in One-dimensional Equilibrium
First Law: Particles in Two-dimensional Equilibrium
Newton's first law tells us about the...
Bewley Lattice Diagram

