JETP Letters

, Volume 91, Issue 11, pp 589–593 | Cite as

Electronic transport through a contact of a correlated quantum wire with leads of higher dimension

Condensed Matter

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 VT, while above VT 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 ≅ ℏVF/eVT and at high temperatures T > T0eVT/kB the effect is destroyed by fluctuations.

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Copyright information

© Pleiades Publishing, Ltd. 2010

Authors and Affiliations

  • S. N. Artemenko
    • 1
  • P. P. Aseev
    • 1
  • D. S. Shapiro
    • 1
  1. 1.Kotel’nikov Institute for Radioengineering and ElectronicsRussian Academy of SciencesMoscowRussia

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