Transport characteristics of nanojunctions far-from-equilibrium
Abstract
We study the tunneling transport through a nanojunction in the far-from-equilibrium regime at relatively low temperatures. We show that the current-voltage characteristics is significantly modified as compared to the usual quasi-equilibrium result by lifting the suppression due to the Coulomb blockade. These effects are important in realistic nanojunctions. We study the high-impedance case in detail to explain the underlying physics and construct a more realistic theoretical model for the case of a metallic junction taking into account dynamic Coulomb interaction. This dynamic screening further reduces the effect of the Coulomb blockade.
- Publication:
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arXiv e-prints
- Pub Date:
- April 2012
- DOI:
- 10.48550/arXiv.1204.5219
- arXiv:
- arXiv:1204.5219
- Bibcode:
- 2012arXiv1204.5219G
- Keywords:
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- Condensed Matter - Mesoscale and Nanoscale Physics
- E-Print:
- 6 pages, 6 figures, revtex4