| Texto completo | |
| Autor(es): |
Toloza Sandoval, M. A.
;
La Rocca, G. C.
;
de Andrada e Silva, E. A.
Número total de Autores: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES; v. 138, p. 6-pg., 2022-04-01. |
| Resumo | |
The electronic structure of lead-salt (IV-VI semiconductor) topological quantum wells (T-QWs) is investigated with analytical solutions of the effective 4x4 Dimmock k & BULL; p model, which gives an accurate description of the bands around the fundamental energy gap. Specific results for three-layer Pb1-xSnxTe nanostructures with varying Sn composition are presented and the main differences between topological and normal (N) QWs highlighted. A series of new features are found in the spectrum of T-QWs, in particular in asymmetric QWs where large (Rashba spin-orbit) splittings are obtained for the topological Dirac states inside the gap. (AU) | |
| Processo FAPESP: | 16/03854-9 - Interação spin-órbita em nanoestruturas semicondutoras e isolantes topológicos |
| Beneficiário: | Erasmo Assumpção de Andrada e Silva |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |