Intersubband Electron Interaction in 1D-2D Junctions
arXiv:cond-mat/0611619 · doi:10.1134/S0021364006190106
Abstract
We have shown that the electron transport through junctions of one-dimensional and two-dimensional systems, as well as through quantum point contacts, is considerably affected by the interaction of electrons of different subbands. The interaction mechanism is caused by Friedel oscillations, which are produced by electrons of the closed subbands even in smooth junctions. Because of the interaction with these oscillations, electrons of the open subbands experience a backscattering. The electron reflection coefficient, which describes the backscattering, has a sharp peak at the energy equal to the Fermi energy and may be as high as about 0.1. This result allows one to explain a number of available experimental facts.
arXiv comment5 pages, 3 figures
References in corpus (13)
- Possible Spin Polarization in a One-Dimensional Electron Gas
- Coherent Branched Flow in a Two-Dimensional Electron Gas
- The Low-Temperature Fate of the 0.7 Structure in a Point Contact: A Kondo-like Correlated State in an Open System
- Spin-charge separation and localization in one-dimension
- Interaction corrections at intermediate temperatures: I. Longitudinal conductivity and kinetic equation
- Kondo model for the "0.7 anomaly" in transport through a quantum point contact
- Friedel oscillations for interacting fermions in one dimension
- Local moment formation in quantum point contacts
- Phenomenological model for the 0.7 conductance feature in quantum wires
- Interaction corrections to the Hall coefficient at intermediate temperatures
- Tunneling ``zero-bias'' anomaly in the quasi-ballistic regime
- Interference and zero-bias anomaly in tunneling between Luttinger-liquid wires
- Zero-bias Anomaly of Tunneling into the Edge of a 2D Electron System