Scanning tunneling spectroscopy of a magnetic atom on graphene in the Kondo regime
Abstract
In this study, the Kondo effect in the system consisting of a magnetic adatom on the graphene is studied. By using the non-equilibrium Green function method with the slave-boson mean field approximation, the local density of state (LDOS) and the conductance are calculated. For a doped graphene, the Kondo phase is present at all time. Surprisingly, two kinds of Kondo regimes are revealed. But for the undoped graphene, the Kondo phase only exists if the adatom’s energy level is beyond a critical value. The conductance is similar to the LDOS, thus, the Kondo peak in the LDOS can be observed with the scanning tunneling spectroscopy. In addition, in the presence of a direct coupling between the STM tip and the graphene, the conductance may be dramatically enhanced, depending on the coupling site.
- Authors:
-
- Chinese Academy of Sciences (CAS), Beijing (China)
- Chinese Academy of Sciences (CAS), Beijing (China); Oklahoma State Univ., Stillwater, OK (United States)
- Publication Date:
- Research Org.:
- Oklahoma State Univ., Stillwater, OK (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1236758
- Grant/Contract Number:
- FG02-04ER46124
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Europhysics Letters
- Additional Journal Information:
- Journal Volume: 86; Journal Issue: 5; Journal ID: ISSN 0295-5075
- Publisher:
- IOP Publishing
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 77 NANOSCIENCE AND NANOTECHNOLOGY
Citation Formats
Zhuang, Huai -Bin, Sun, Qing -feng, and Xie, X. C. Scanning tunneling spectroscopy of a magnetic atom on graphene in the Kondo regime. United States: N. p., 2009.
Web. doi:10.1209/0295-5075/86/58004.
Zhuang, Huai -Bin, Sun, Qing -feng, & Xie, X. C. Scanning tunneling spectroscopy of a magnetic atom on graphene in the Kondo regime. United States. https://doi.org/10.1209/0295-5075/86/58004
Zhuang, Huai -Bin, Sun, Qing -feng, and Xie, X. C. Tue .
"Scanning tunneling spectroscopy of a magnetic atom on graphene in the Kondo regime". United States. https://doi.org/10.1209/0295-5075/86/58004. https://www.osti.gov/servlets/purl/1236758.
@article{osti_1236758,
title = {Scanning tunneling spectroscopy of a magnetic atom on graphene in the Kondo regime},
author = {Zhuang, Huai -Bin and Sun, Qing -feng and Xie, X. C.},
abstractNote = {In this study, the Kondo effect in the system consisting of a magnetic adatom on the graphene is studied. By using the non-equilibrium Green function method with the slave-boson mean field approximation, the local density of state (LDOS) and the conductance are calculated. For a doped graphene, the Kondo phase is present at all time. Surprisingly, two kinds of Kondo regimes are revealed. But for the undoped graphene, the Kondo phase only exists if the adatom’s energy level is beyond a critical value. The conductance is similar to the LDOS, thus, the Kondo peak in the LDOS can be observed with the scanning tunneling spectroscopy. In addition, in the presence of a direct coupling between the STM tip and the graphene, the conductance may be dramatically enhanced, depending on the coupling site.},
doi = {10.1209/0295-5075/86/58004},
journal = {Europhysics Letters},
number = 5,
volume = 86,
place = {United States},
year = {Tue Jun 23 00:00:00 EDT 2009},
month = {Tue Jun 23 00:00:00 EDT 2009}
}
Free Publicly Available Full Text
Publisher's Version of Record
Other availability
Search WorldCat to find libraries that may hold this journal
Cited by: 35 works
Citation information provided by
Web of Science
Web of Science
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.
Works referencing / citing this record:
The physics of Kondo impurities in graphene
journal, February 2013
- Fritz, Lars; Vojta, Matthias
- Reports on Progress in Physics, Vol. 76, Issue 3
Magnetic impurity in topological nodal loop semimetals
journal, October 2018
- Deng, Ying-Hua; Lü, Hai-Feng; Ke, Sha-Sha
- Journal of Physics: Condensed Matter, Vol. 30, Issue 43
Modeling the Kondo effect of a magnetic atom adsorbed on graphene
journal, June 2019
- Liang, Liangbo; Costa Girão, Eduardo; Meunier, Vincent
- 2D Materials, Vol. 6, Issue 3
Ferromagnetism-induced Kondo effect in graphene with a magnetic impurity
journal, September 2019
- Li, Gao-Yang; Fang, Tie-Feng; Guo, Ai-Min
- Physical Review B, Vol. 100, Issue 11
Magnetic adatoms on graphene in the Kondo regime: An Anderson model treatment
journal, October 2011
- Zhu, Zhen-Gang; Berakdar, Jamal
- Physical Review B, Vol. 84, Issue 16
Magnetic impurity in a Weyl semimetal
journal, November 2015
- Sun, Jin-Hua; Xu, Dong-Hui; Zhang, Fu-Chun
- Physical Review B, Vol. 92, Issue 19
Orbitally controlled Kondo effect of Co ad-atoms on graphene
text, January 2009
- Wehling, T. O.; Balatsky, A. V.; Katsnelson, M. I.
- arXiv
Kondo Quantum Criticality of Magnetic Adatoms in Graphene
text, January 2010
- Uchoa, Bruno; Rappoport, T. G.; Neto, A. H. Castro
- arXiv
Electron-Electron Interactions in Graphene: Current Status and Perspectives
text, January 2010
- Kotov, Valeri N.; Uchoa, Bruno; Pereira, Vitor M.
- arXiv