Behavior of a magnetic impurity in graphene in the presence of a vacancy
Loading...
Access rights
© 2012 American Physical Society (APS). This is the accepted version of the following article: Hu, F. M. & Gubernatis, J. E. & Lin, Hai-Qing & Li, Yan-Chao & Nieminen, Risto M. 2012. Behavior of a magnetic impurity in graphene in the presence of a vacancy. Physical Review B. Volume 85, Issue 11. 115442/1-5. ISSN 1550-235X (electronic). DOI: 10.1103/physrevb.85.115442, which has been published in final form at http://journals.aps.org/prb/abstract/10.1103/PhysRevB.85.115442.
URL
Journal Title
Journal ISSN
Volume Title
School of Science |
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Unless otherwise stated, all rights belong to the author. You may download, display and print this publication for Your own personal use. Commercial use is prohibited.
Date
2012
Major/Subject
Mcode
Degree programme
Language
en
Pages
115442/1-5
Series
Physical Review B, Volume 85, Issue 11
Abstract
With quantum Monte Carlo methods, we investigate the consequences of placing a magnetic adatom adjacent to a vacancy in a graphene sheet. We find that instead of the adatom properties depending on the energy of the adatom orbital, as in a single-impurity problem, they develop a dependence on the energy of the split localized state associated with the single-vacancy problem. Shifting the chemical potential through this experimentally more accessible energy scale reveals unique behavior in the spectral density, magnetic susceptibility, and the correlations of the adatom spin and charge with those of the conduction electrons. In general, the behavior of the adatom in the presence of a vacancy differs significantly from its behavior in the absence of a vacancy.Description
Keywords
graphene sheets, magnetic impurities, vacancy, quantum Monte Carlo methods
Other note
Citation
Hu, F. M. & Gubernatis, J. E. & Lin, Hai-Qing & Li, Yan-Chao & Nieminen, Risto M. 2012. Behavior of a magnetic impurity in graphene in the presence of a vacancy. Physical Review B. Volume 85, Issue 11. 115442/1-5. ISSN 1550-235X (electronic). DOI: 10.1103/physrevb.85.115442.