Tunnelling transmission resonances through a zero-dimensional structure
| Autor: | Chi-Te Liang, Michael Pepper, Zhen-Li Ji, J. E. F. Frost, I. M. Castleton, Karl-Fredrik Berggren, David A. Ritchie, Tomas Lundberg |
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| Rok vydání: | 1997 |
| Předmět: |
Condensed matter physics
Chemistry Conductance Electron Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics Electronic Optical and Magnetic Materials Magnetic field Transmission (telecommunications) Quantum dot Materials Chemistry Transmission coefficient Electrical and Electronic Engineering Conductance quantum Quantum tunnelling |
| Zdroj: | Semiconductor Science and Technology. 12:875-880 |
| ISSN: | 1361-6641 0268-1242 |
| DOI: | 10.1088/0268-1242/12/7/018 |
| Popis: | We have performed low-temperature conductance measurements on a quantum dot. For zero magnetic field we find transmission resonances in the regions between successive ballistic quantized conductance plateaus. The results of the conductance measurements are compared with single-particle transmission coefficient calculations for the estimated two-dimensional device potential. In accordance with the experimental results, the calculation predicts transmission resonances of similar lineshape and energy spacing. We also include, in a simple but realistic model, the effect of electron - electron interaction. |
| Databáze: | OpenAIRE |
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