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- Title
Electronic transport through a contact of a correlated quantum wire with leads of higher dimension.
- Authors
Artemenko, S. N.; Aseev, P. P.; Shapiro, D. S.
- Abstract
We study theoretically electronic transport through a contact of a quantum wire with 2D or 3D leads and find that if the contact is not smooth and adiabatic then the conduction is strongly suppressed below a threshold voltage V T, while above V T the dc current $$ \bar I $$ is accompanied by coherent oscillations of frequency f = $$ \bar I $$/ e. The effect is related to interelectronic repulsion and interaction of dc current with the Friedel oscillations near a sharp contact. In short conducting channels of length L < L0 ≅ ℏV F/ eV T and at high temperatures T > T0 ≅ eV T/ kB the effect is destroyed by fluctuations.
- Subjects
NANOWIRES; NANOSTRUCTURED materials; HIGH temperatures; DIRECT currents; FLUCTUATIONS (Physics); OSCILLATIONS
- Publication
JETP Letters, 2010, Vol 91, Issue 11, p589
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/S002136401011010X