Enviar artigo por via de e-mail Increasing Spin-Orbital Coupling at Relativistic Exchange Interaction of Electron-Hole Pairs in Graphene
- Autores: Grushevskaya H.1, Krylov G.1
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Afiliações:
- Belarusian State University
- Edição: Volume 52, Nº 14 (2018)
- Páginas: 1879-1881
- Seção: Graphene
- URL: https://journals.rcsi.science/1063-7826/article/view/205115
- DOI: https://doi.org/10.1134/S1063782618140129
- ID: 205115
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Resumo
Graphene model with a high-energy k · p-Hamiltonian has been proposed. A feature of the model is the increasing spin-orbital coupling at relativistic exchange interactions of electron-hole pairs. Topological nontriviality of the model has been established by non-abelian Zak phase calculations. It has been shown that the homotopy group of the model is Z2 × Z4.
Sobre autores
H. Grushevskaya
Belarusian State University
Email: krylov@bsu.by
Belarus, Minsk
G. Krylov
Belarusian State University
Autor responsável pela correspondência
Email: krylov@bsu.by
Belarus, Minsk
