Theory of quantized dynamic capacitance charging spectroscopy in nanostructures
Journal Article
·
· Physical Review Letters
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
The dynamic mechanism of electrons tunneling back and forth between a source and a nanostructure, leading to a quantized capacitance charging spectroscopy, is revealed. We predict that (1) lock-in voltages show a single peak structure at low ac excitation voltage amplitudes and a twin peak structure at high amplitudes for the tunneling of a single electron; (2) the lock-in voltages show several peaks with different heights for multitunneling electrons within the ac voltage oscillation range. We find that the peak height increases nonlinearly with increasing number of tunneling electrons. These findings are in excellent agreement with experimental measurements.
- OSTI ID:
- 69290
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 23 Vol. 74; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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