| Автор | C G Smith |
| Автор | M Pepper |
| Автор | R Newbury |
| Автор | H Ahmed |
| Автор | D G Hasko |
| Автор | D C Peacock |
| Автор | J E F Frost |
| Автор | D A Ritchie |
| Автор | G A C Jones |
| Автор | G Hill |
| Дата выпуска | 1989-09-18 |
| dc.description | The authors have defined, in parallel configuration, two split gate devices 0.3 mu m long by 0.3 mu m wide with a centre-to-centre separation of 0.5 mu m on a high mobility heterojunction. At low temperatures, when the phase coherence length is longer than the channel length, the conduction through each one is ballistic and shows steps in conductance of 2e<sup>2</sup>/h. If the phase coherence length is also greater than the channel separation, transport through both channels is no longer independent, but instead the channels act co-operatively, leading to coherent steps in the conductance of 4e<sup>2</sup>/h; this can be seen even if the channels do not have the same widths. The device shows Aharonov-Bohm oscillators in resistance of amplitude 10%, arising from a current circulating via edge states through both channels, indicating that the electron wavefunctions is indeed coherent through both. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | One-dimensional quantised ballistic resistors in parallel configuration |
| Тип | lett |
| DOI | 10.1088/0953-8984/1/37/022 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 1 |
| Первая страница | 6763 |
| Последняя страница | 6770 |
| Аффилиация | C G Smith; Cavendish Lab., Cambridge Univ., UK |
| Аффилиация | M Pepper; Cavendish Lab., Cambridge Univ., UK |
| Аффилиация | R Newbury; Cavendish Lab., Cambridge Univ., UK |
| Аффилиация | H Ahmed; Cavendish Lab., Cambridge Univ., UK |
| Аффилиация | D G Hasko; Cavendish Lab., Cambridge Univ., UK |
| Аффилиация | D C Peacock; Cavendish Lab., Cambridge Univ., UK |
| Аффилиация | J E F Frost; Cavendish Lab., Cambridge Univ., UK |
| Аффилиация | D A Ritchie; Cavendish Lab., Cambridge Univ., UK |
| Аффилиация | G A C Jones; Cavendish Lab., Cambridge Univ., UK |
| Аффилиация | G Hill; Cavendish Lab., Cambridge Univ., UK |
| Выпуск | 37 |
