Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Scanning tunneling spectroscopy of a magnetic atom on graphene in the Kondo regime

Journal Article · · Europhysics Letters
 [1];  [1];  [2]
  1. Chinese Academy of Sciences (CAS), Beijing (China)
  2. Chinese Academy of Sciences (CAS), Beijing (China); Oklahoma State Univ., Stillwater, OK (United States)
+ Show Author Affiliations
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.
Research Organization:
Oklahoma State Univ., Stillwater, OK (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
FG02-04ER46124
OSTI ID:
1236758
Journal Information:
Europhysics Letters, Journal Name: Europhysics Letters Journal Issue: 5 Vol. 86; ISSN 0295-5075
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English

Cited By (19)

The physics of Kondo impurities in graphene journal February 2013
Magnetic impurity in topological nodal loop semimetals journal October 2018
Magnetic impurity resonance states for different pairing symmetries in twisted bilayer graphene journal December 2018
Modeling the Kondo effect of a magnetic atom adsorbed on graphene journal June 2019
Ferromagnetism-induced Kondo effect in graphene with a magnetic impurity journal September 2019
Theory of Fano resonances in graphene: The influence of orbital and structural symmetries on STM spectra journal February 2010
Orbitally controlled Kondo effect of Co adatoms on graphene journal March 2010
Gated adatoms on graphene studied with first-principles calculations journal January 2011
Magnetic adatoms on graphene in the Kondo regime: An Anderson model treatment journal October 2011
Transition-metal adatoms on graphene: Influence of local Coulomb interactions on chemical bonding and magnetic moments journal December 2011
Kondo effect with diverging hybridization: Possible realization in graphene with vacancies journal August 2013
Kondo effect in monolayer and bilayer graphene: Physical realizations of the multichannel Kondo models journal November 2013
Magnetic impurity in a Weyl semimetal journal November 2015
Kondo Quantum Criticality of Magnetic Adatoms in Graphene journal January 2011
Electron-Electron Interactions in Graphene: Current Status and Perspectives journal July 2012
Orbitally controlled Kondo effect of Co ad-atoms on graphene text January 2009
Kondo Quantum Criticality of Magnetic Adatoms in Graphene text January 2010
Electron-Electron Interactions in Graphene: Current Status and Perspectives text January 2010
The Physics of Kondo Impurities in Graphene text January 2012

Similar Records

Modeling the Kondo effect of a magnetic atom adsorbed on graphene
Journal Article · Wed Jun 05 20:00:00 EDT 2019 · 2D Materials · OSTI ID:1524870
Scanning tunneling shot-noise spectroscopy in Kondo systems
Journal Article · Thu Sep 19 20:00:00 EDT 2019 · Physical Review. B · OSTI ID:1618191

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY