Sablikov Vladimir A., Shchamkhalova Bagun S. Radiative Decay of Bound Electron Pairs in Two‐Dimensional Topological Insulators. physica status solidi (RRL) – Rapid Research Letters , 2019 , 13 (11). р. 1900358. ISSN 1862-6254
|
Текст
physica status solidi RRL, 13, 1900358 (2019).pdf Загрузить (418kB) | Предварительный просмотр |
Аннотация
Bound electron pairs (BEPs) with energy in the bandgap are interesting because they can participate in charge and spin transport in modern topologically nontrivial materials. The problem of their stability is addressed and the radiative decay of the BEPs formed due to the negative reduced effective mass in 2D topological insulators is studied. The decay time is found to be rather large on the scale of the characteristic relaxation times of the electron system and significantly dependent on the topological properties and dispersion of the band states. In the topological phase, the decay time is much longer than in the trivial one, and is estimated as ~1 ns for the HgTe/CdHgTe heterostructures. However, the longest decay time is in the topological phase with nearly flat dispersion in the band extrema.
| Тип объекта: | Статья |
|---|---|
| Авторы на русском. ОБЯЗАТЕЛЬНО ДЛЯ АНГЛОЯЗЫЧНЫХ ПУБЛИКАЦИЙ!: | Сабликов В.А., Щамхалова Б.С. |
| Подразделения (можно выбрать несколько, удерживая Ctrl): | 199 лаб. теоретических проблем микроэлектроники |
| URI: | http://cplire.ru:8080/id/eprint/7520 |
 |
Изменить объект |
