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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Veröffentlicht in:	Nanoscale research letters 2012-10, Vol.7 (1), p.1-599, Article 599
Hauptverfasser:	Mahmoodian, Mahmood, Entin, Matvey
Format:	Artikel
Sprache:	eng
Schlagworte:	Chemistry and Materials Science International Conference on Superlattices Materials Science Molecular Medicine Nano Express Nanochemistry Nanodevices (ICSNN 2012) Nanoscale Science and Technology Nanostructures Nanotechnology Nanotechnology and Microengineering
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Zusammenfassung:	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.
ISSN:	1556-276X 1931-7573 1556-276X
DOI:	10.1186/10.1186/1556-276X-7-599