Detection of the Kondo effect in the resistivity of graphene: Artifacts and strategies

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autor(en): Jobst J, Kißlinger F, Weber HB
Zeitschrift: Physical Review B
Verlag: American Physical Society
Jahr der Veröffentlichung: 2013
Band: 88
Heftnummer: 15
Seitenbereich: 155412
ISSN: 1098-0121


Abstract


We discuss the difficulties in discovering the Kondo effect in the resistivity of graphene. Similarly to the Kondo effect, electron-electron interaction effects and weak localization appear as logarithmic corrections to the resistance. In order to disentangle these contributions, a refined analysis of the magnetoconductance and the magnetoresistance is introduced. We present numerical simulations which display the discrimination of both effects. Further, we present experimental data of magnetotransport. When magnetic molecules are added to graphene, a logarithmic correction to the conductance occurs, which apparently suggests Kondo physics. Our thorough evaluation scheme, however, reveals that this interpretation is not conclusive: The data can be equally explained by electron-electron interaction corrections in an inhomogeneous sample. Despite our refined analysis, we conclude that additional spectroscopic information will be necessary to unambiguously identify the Kondo effect. © 2013 American Physical Society.



FAU-Autoren / FAU-Herausgeber

Jobst, Johannes
Lehrstuhl für Angewandte Physik
Kißlinger, Ferdinand
Lehrstuhl für Angewandte Physik
Weber, Heiko B. Prof. Dr.
Lehrstuhl für Angewandte Physik


Zitierweisen

APA:
Jobst, J., Kißlinger, F., & Weber, H.B. (2013). Detection of the Kondo effect in the resistivity of graphene: Artifacts and strategies. Physical Review B, 88(15), 155412. https://dx.doi.org/10.1103/PhysRevB.88.155412

MLA:
Jobst, Johannes, Ferdinand Kißlinger, and Heiko B. Weber. "Detection of the Kondo effect in the resistivity of graphene: Artifacts and strategies." Physical Review B 88.15 (2013): 155412.

BibTeX: 

Zuletzt aktualisiert 2018-09-08 um 20:38