Sablikov Vladimir A., Sukhanov Aleksei A. Helical bound states in the continuum of the edge states in two dimensional topological insulators. Physics Letters A , 2015 , 379 (30-31). С. 1775-1779. ISSN 03759601
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Текст
Physics Letters A 379 (2015) 1775–1779_Helical bound states in the continuum of the edge states in two dimensional topological insulators.pdf Загрузить (552kB) | Предварительный просмотр |
Аннотация
We study bound states embedded into the continuum of edge states in two-dimensional topological insulators. These states emerge in the presence of a short-range potential of a structural defect coupled to the boundary. In this case the edge states flow around the defect and have two resonances in the local density of states. The bound state in continuum (BIC) arises due to an interference of the resonances when they are close to the degeneracy. We find the condition under which the BIC appears, study the spacial distribution of the electron density, and show that the BIC has a helical structure with an electron current circulating around the defect. ©
| Тип объекта: | Статья |
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| Авторы на русском. ОБЯЗАТЕЛЬНО ДЛЯ АНГЛОЯЗЫЧНЫХ ПУБЛИКАЦИЙ!: | В.А. Сабликов А.А. Суханов |
| Подразделения (можно выбрать несколько, удерживая Ctrl): | 199 лаб. теоретических проблем микроэлектроники |
| URI: | http://cplire.ru:8080/id/eprint/2541 |
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