| Автор | J. Wróbel |
| Автор | T. Brandes |
| Автор | F. Kuchar |
| Автор | B. Kramer |
| Автор | K. Ismail |
| Автор | K. Y. Lee |
| Автор | H. Hillmer |
| Автор | W. Schlapp |
| Автор | T. Dietl |
| Дата выпуска | 1995-02-20 |
| dc.description | The conductance of a 20 μm long quantum wire in an AlGaAs/GaAs heterostructure is investigated as a function of a perpendicular magnetic field and the temperature. Quantization in units of 2e<sup>2</sup>/h occurs at moderate field strengths and sufficiently low temperatures. For higher magnetic fields an additional conductance plateau at e<sup>2</sup>/h occurs due to an exchange-interaction-induced Zeeman splitting of the corresponding subband. With increasing temperature, the conductance plateaus are partially reduced, which is characteristic for the interaction between the electrons and three-dimensional phonons. The interpretation is based on an enhancement of the electron-phonon scattering as soon as the Fermi velocity within a subband exceeds the sound velocity. Within the region of strong scattering the temperature dependence of the conductance changes from T<sup>3</sup> to T. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Electron-Phonon Interaction in the Transport Properties of Quantum Wires |
| Тип | lett |
| DOI | 10.1209/0295-5075/29/6/009 |
| Electronic ISSN | 1286-4854 |
| Print ISSN | 0295-5075 |
| Журнал | EPL (Europhysics Letters) |
| Том | 29 |
| Первая страница | 481 |
| Последняя страница | 487 |
| Выпуск | 6 |
