Smearing of the Coulomb Blockade by Resonant Tunneling
- 20 November 2000
- journal article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 85 (21) , 4582-4585
- https://doi.org/10.1103/physrevlett.85.4582
Abstract
We study the Coulomb blockade in a grain coupled to a lead via a resonant impurity level. We show that the strong energy dependence of the transmission coefficient through the impurity level can have a dramatic effect on the quantization of the grain charge. In particular, if the resonance is sufficiently narrow, the Coulomb staircase shows very sharp steps even if the transmission through the impurity at the Fermi energy is perfect. This is in contrast to the naive expectation that perfect transmission should completely smear charging effects.Keywords
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This publication has 7 references indexed in Scilit:
- Coulomb Blockade without Tunnel JunctionsPhysical Review Letters, 1999
- Observation of Quantum Fluctuations of Charge on a Quantum DotPhysical Review Letters, 1999
- Mesoscopic charge quantizationPhysical Review B, 1998
- Introduction to Mesoscopic Electron TransportPublished by Springer Nature ,1997
- Coulomb blockade at almost perfect transmissionPhysical Review B, 1995
- Two-electron quantization of the charge on a superconductorNature, 1993
- Charging effects in quantum dots at high magnetic fieldsPhysica B: Condensed Matter, 1993