|
|
Instituto de Ciencia de Materiales de Madrid |
|
|||
| Condensed Matter Theory | |||||
| Sigmund Kohler | home | cv | research | publications | ||||
Transport suppression in heterostructures driven by an AC gate voltageMiguel Rey, Michael Strass, Sigmund Kohler, Fernando Sols, and Peter HänggiChem. Phys. 319, 360 (2005) We explore the possibility of inducing in heterostructures driven by an ac gatevoltage the coherent current suppression recently found for nanoscale conductors in oscillating fields. The destruction of current is fairly independent of the transport voltage, but can be controlled by the driving amplitude and frequency. Within a tight-binding approximation, we obtain analytical results for the average current in the presence of driving. These results are compared against an exact numerical treatment based on a transfer-matrix approach. arXiv:cond-mat/0412221 |
[ICMM-CSIC]
[Condensed Matter Theory]
last modified: 18.11.2024 by
Sigmund Kohler