Symmetry of electron bands in graphene: (nearly) free electron vs. tight-binding

Autor:	Kogan, Eugene, Silkin, Vyacheslav M.
Rok vydání:	2020
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics
Zdroj:	physica status solidi (b) 258, 2000504 (2021)
Druh dokumentu:	Working Paper
DOI:	10.1002/pssb.202000504
Popis:	We present the symmetry labelling of all electron bands in graphene obtained by combining numerical band calculations and analytical analysis based on group theory. The latter was performed both in the framework of the (nearly) free electron model, or in the framework of the tight-binding model. The predictions about relative positions of the bands which can be made on the basis of each of the models just using the group theory (and additional simple qualitative arguments, if necessary) are complimentary. Comment: pdflaTeX, 8+epsilon pages, 17 graphic files. References are added. As accepted for publication in pss(b)
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2009.02356 Zobrazit plný text záznamu View this record from Arxiv