| Автор | Chuan-Kui Wang |
| Автор | K-F Berggren |
| Дата выпуска | 1996-02-01 |
| dc.description | We have carried out a quantum mechanical calculation of the differential conductance of the double-bend channels defined by abrupt changes in geometry. The constriction has been connected to two semi-infinite two-dimensional electron gas regions, which serve as emitter and collector when a source - drain voltage is applied. We assume that the source - drain voltage has a symmetric drop along the double-bend quantum channel, and that the main drop occurs at the boundaries where the backscattering takes place. Our results show that the source - drain voltage strongly smears the resonant peaks in the differential conductance corresponding to the resonant tunnelling via the quasibound states below the first conductance plateau of the double-bend quantum channel. Our calculations also show that additional conductance quasiplateaus develop as the source - drain voltage is increased, and that the edges of the voltage-induced conductance quasiplateaus are shifted linearly with the applied source - drain voltage. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Nonlinear transport in a ballistic quantum channel modulated with a double-bend structure |
| Тип | paper |
| DOI | 10.1088/0268-1242/11/2/011 |
| Electronic ISSN | 1361-6641 |
| Print ISSN | 0268-1242 |
| Журнал | Semiconductor Science and Technology |
| Том | 11 |
| Первая страница | 207 |
| Последняя страница | 213 |
| Аффилиация | Chuan-Kui Wang; Department of Physics and Measurement Technology, Linköping University, S-58183 Linköping, Sweden |
| Аффилиация | K-F Berggren; Department of Physics and Measurement Technology, Linköping University, S-58183 Linköping, Sweden |
| Выпуск | 2 |
