Coulomb Impurity Problem of Graphene in Strong Coupling Regime in Magnetic Fields
- Authors
- Kim, S. C.; Yang, S. -R. Eric
- Issue Date
- 10월-2015
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Keywords
- Graphene; Dirac Electron; Magnetic Field; Coulomb Impurity
- Citation
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.15, no.10, pp.8238 - 8242
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
- Volume
- 15
- Number
- 10
- Start Page
- 8238
- End Page
- 8242
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/92334
- DOI
- 10.1166/jnn.2015.11252
- ISSN
- 1533-4880
- Abstract
- We investigate the Coulomb impurity problem of graphene in strong coupling limit in the presence of magnetic fields. When the strength of the Coulomb potential is sufficiently strong the electron of the lowest energy boundstate of the n = 0 Landau level may fall to the center of the potential. To prevent this spurious effect the Coulomb potential must be regularized. The scaling function for the inverse probability density of this state at the center of the impurity potential is computed in the strong coupling regime. The dependence of the computed scaling function on the regularization parameter changes significantly as the strong coupling regime is approached.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Science > Department of Physics > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.