Автор |
Ming Jun Zhu |
Автор |
Xian-Geng Zhao |
Автор |
Qian Niu |
Дата выпуска |
1999-06-14 |
dc.description |
We study the propagation of an electron in a superlattice under the action of a rectangular-wave electric field. Exact results for any initial distribution and long-range hopping couplings are obtained. Total collapse of the quasi-energy spectrum is found to take place at suitably chosen field parameters, which leads to the transition between localization and delocalization. Moreover, this localization/delocalization behaviour persists even if long-range hoppings are taken into account. The transport property of the system is also investigated where the signatures of the transition between localization and delocalization as well as fractional Wannier-Stark ladders are manifested. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Manipulation of band electrons with a rectangular-wave electric field |
Тип |
paper |
DOI |
10.1088/0953-8984/11/23/307 |
Electronic ISSN |
1361-648X |
Print ISSN |
0953-8984 |
Журнал |
Journal of Physics: Condensed Matter |
Том |
11 |
Первая страница |
4527 |
Последняя страница |
4538 |
Выпуск |
23 |