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 Ī is accompanied by coherent oscillations of frequency f = Ī/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 > T0 ≅ eVT/kB the effect is destroyed by fluctuations.
| Original language | English |
|---|---|
| Pages (from-to) | 589-593 |
| Number of pages | 5 |
| Journal | JETP Letters |
| Volume | 91 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 11 Aug 2010 |
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ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
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Electronic transport through a contact of a correlated quantum wire with leads of higher dimension. / Artemenko, S. N.; Aseev, P. P.; Shapiro, D. S.
In: JETP Letters, Vol. 91, No. 11, 11.08.2010, p. 589-593.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Electronic transport through a contact of a correlated quantum wire with leads of higher dimension
AU - Artemenko, S. N.
AU - Aseev, P. P.
AU - Shapiro, D. S.
PY - 2010/8/11
Y1 - 2010/8/11
N2 - 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 Ī is accompanied by coherent oscillations of frequency f = Ī/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 > T0 ≅ eVT/kB the effect is destroyed by fluctuations.
AB - 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 Ī is accompanied by coherent oscillations of frequency f = Ī/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 > T0 ≅ eVT/kB the effect is destroyed by fluctuations.
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U2 - 10.1134/S002136401011010X
DO - 10.1134/S002136401011010X
M3 - Article
VL - 91
SP - 589
EP - 593
JO - JETP Letters
JF - JETP Letters
SN - 0021-3640
IS - 11
ER -