Tuning the tunneling probability between low-dimensional electron systems by momentum matching
作者： Daming Zhou , Andreas Beckel , Arne Ludwig , Andreas. D. Wieck , Martin Geller
DOI: 10.1063/1.4922738
关键词: Quantum tunnelling 、 Quantum point contact 、 Density of states 、 Condensed matter physics 、 Tunnel junction 、 Momentum (technical analysis) 、 Quantum dot 、 Electron density 、 Electron 、 Physics
摘要: We demonstrate the possibility to tune tunneling probability between an array of self- assembled quantum dots and a two-dimensional electron gas (2DEG) by changing energy imbalance dot states 2DEG. Contrary expectation from Fowler-Nordheim tunneling, rate decreases with increasing injection energy. This can be explained momentum mismatch Fermi-circle in Our findings matching as useful mechanism (in addition conservation, density states, transmission probability) electrically control charge transfer reservoir.
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