Please use this identifier to cite or link to this item:

Electronic structure in gapped graphene with a Coulomb potential

Authors Wei Zhu
Zhengfei Wang
Qinwei Shi
K. Y. Szeto
Jie Chen
J. G. Hou
Issue Date 2009
Source Physical Review B, v. 79, (15), April 2009
Summary In this paper, we numerically study bound electron states induced by long-range Coulomb impurities in gapped graphene and quasibound states in the supercritical region based on the lattice model. We present a detailed comparison between our numerical calculations and the prediction of quantum electrodynamics 2+1(QED) continuum model. Furthermore, the supercritical charge has been determined by both the lattice model and the continuum model. The numerical results show that the behavior of quasibound state is consistent with the prediction using Fano’s formalism.
ISSN 1098-0121
Rights © 2009 American Physical Society
Language English
Format Article
Access View full-text via DOI
View full-text via Web of Science
View full-text via Scopus
Files in this item:
File Description Size Format
PhysRevB.79.155430.pdf Published version 328139 B Adobe PDF