Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/66036
Título: | Analytical quantitative semi-classical approach to the LoSurdo-Stark effect and ionization in 2D excitons |
Autor(es): | Henriques, J. C. G. Kamban, Hogni C. Pedersen, Thomas G. Peres, N. M. R. |
Data: | 2020 |
Editora: | American Physical Society |
Revista: | Physical Review B |
Resumo(s): | Using a semiclassical approach, we derive a fully analytical expression for the ionization rate of excitons in two-dimensional materials due to an external static electric field, which eliminates the need for complicated numerical calculations. Our formula shows quantitative agreement with more sophisticated numerical methods based on the exterior complex scaling approach, which solves a non-Hermitian eigenvalue problem yielding complex energy eigenvalues, where the imaginary part describes the ionization rate. Results for excitons in hexagonal boron nitride and the A exciton in transition metal dichalcogenides are given as simple examples. The extension of the theory to include spin-orbit-split excitons in transition metal dichalcogenides is trivial. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/66036 |
DOI: | 10.1103/PhysRevB.102.035402 |
ISSN: | 2469-9950 |
e-ISSN: | 2469-9969 |
Versão da editora: | https://journals.aps.org/prb/abstract/10.1103/PhysRevB.102.035402 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | PHYSICS OF QUANTUM MATERIALS AND BIONANOSTRUCTURES (2018 - ...) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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2004.11646.pdf | 753,85 kB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons