Fano-Kondo Effect of Magnetic Impurity with Side-Coupled Graphene Flake |
| D. Krychowski, J. Kopiński, S. Lipiński
Institute of Molecular Physics, Polish Academy of Sciences M. Smoluchowskiego 17, 60-179 Poznań, Poland |
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| We examine transport through a spin-1/2 Kondo impurity, patterned between atomic scale electrodes in the presence of side-coupled nanographene flake. Impurity is attached to the edge of the flake, what allows to test the edge states. The Kotliar Ruckenstein slave boson approach is adopted to describe the strongly correlated impurity. We show that transport measurement of Fano-Kondo effect can serve as a spectroscopic probe of spin resolved graphene flake energy levels. The edge moments can be completely suppressed by gate voltage. |
DOI: 10.12693/APhysPolA.126.202 PACS numbers: 73.22.Pr, 72.80.Vp, 73.23.-b, 72.15.Qm, 85.75.-d |