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Abstracts
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.
Discipline
- 72.15.Qm: Scattering mechanisms and Kondo effect(see also 75.20.Hr Local moments in compounds and alloys; Kondo effect, valence fluctuations, heavy fermions in magnetic properties and materials)
- 72.80.Vp: Electronic transport in graphene
- 73.22.Pr: Electronic structure of graphene
- 73.23.-b: Electronic transport in mesoscopic systems
- 85.75.-d: Magnetoelectronics; spintronics: devices exploiting spin polarized transport or integrated magnetic fields
Journal
Year
Volume
Issue
Pages
202-203
Physical description
Dates
published
2014-07
Contributors
author
- Institute of Molecular Physics, Polish Academy of Sciences M. Smoluchowskiego 17, 60-179 Poznań, Poland
author
- Institute of Molecular Physics, Polish Academy of Sciences M. Smoluchowskiego 17, 60-179 Poznań, Poland
author
- Institute of Molecular Physics, Polish Academy of Sciences M. Smoluchowskiego 17, 60-179 Poznań, Poland
References
- [1] Y.-W. Son, M. L. Cohen, S.G. Louie, Nature 444, 347 (2006), doi: 10.1038/nature05180
- [2] E. H. Lieb, Phys. Rev. Lett. 62, 1201 (1989), doi: 10.1103/PhysRevLett.62.1201
- [3] I. Weymann, J. Barnas, S. Krompiewski, Phys. Rev. B 85, 205306 (2012), doi: 10.1103/PhysRevB.85.205306
- [4] Ch. Tao, L. Jiao, O.V. Yazyev, Y.-C. Chen, J. Feng, X. Zhang, R.B. Capaz, J.M. Tour, A. Zettl, S.G. Louie, H. Dai, M.F. Crommie, Nature Phys. 7, 616 (2011), doi: 10.1038/nphys1991
- [5] W. Liang, M.P. Shores, M. Bockrath, J.R. Long, H. Park, Nature 417, 725 (2002), doi: 10.1038/nature00790
- [6] G. Kotliar, A.E. Ruckenstein, Phys. Rev. Lett. 57, 1362 (1986), doi: 10.1103/PhysRevLett.57.1362
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv126n1096kz