| Автор | Ningjia Zhu |
| Автор | Hong Guo |
| Автор | R Harris |
| Дата выпуска | 1998-11-09 |
| dc.description | We analyse the non-universal conductance fluctuations for a dirty quantum wire in a transport regime where both mesoscopic and ballistic transport characteristics play a role. This `mixed' transport regime is reached when impurities are distributed near the walls of a quantum wire, leaving the centre region ballistic. Using a diagrammatic technique, we find that the existence of a ballistic region destroys the conventional universal conductance fluctuations. The crossover behaviour of the fluctuation amplitude from the usual quasi-1D situation to that of the mixed regime is clearly revealed, and the role of various length scales identified. Our analytical predictions are confirmed by a direct numerical evaluation of the Landauer-Büttiker formula. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Conductance fluctuation theory for a mixed transport regime |
| Тип | paper |
| DOI | 10.1088/0953-8984/10/44/011 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 10 |
| Первая страница | 10035 |
| Последняя страница | 10059 |
| Аффилиация | Ningjia Zhu; Department of Physics and Centre for the Physics of Materials, McGill University, Montréal, Québec, H3A 2T8 Canada |
| Аффилиация | Hong Guo; Department of Physics and Centre for the Physics of Materials, McGill University, Montréal, Québec, H3A 2T8 Canada |
| Аффилиация | R Harris; Department of Physics and Centre for the Physics of Materials, McGill University, Montréal, Québec, H3A 2T8 Canada |
| Выпуск | 44 |
