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Moving gapless indirect excitons in monolayer graphene

The existence of moving indirect excitons in monolayer graphene is theoretically evidenced in the envelope-function approximation. The excitons are formed from electrons and holes near the opposite conic points. The electron-hole binding is conditioned by the trigonal warping of the electron spectru...

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Detalles Bibliográficos
Autores principales: Mahmoodian, Mahmood, Entin, Matvey
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3570371/
https://www.ncbi.nlm.nih.gov/pubmed/23110813
http://dx.doi.org/10.1186/10.1186/1556-276X-7-599
Descripción
Sumario:The existence of moving indirect excitons in monolayer graphene is theoretically evidenced in the envelope-function approximation. The excitons are formed from electrons and holes near the opposite conic points. The electron-hole binding is conditioned by the trigonal warping of the electron spectrum. It is stated that the exciton exists in some sectors of the exciton momentum space and has the strong trigonal warping of the spectrum.