PL EN


Preferences help
enabled [disable] Abstract
Number of results
2009 | 116 | 5 | 832-834
Article title

Electronic Shells of Dirac Fermions in Graphene Quantum Rings in a Magnetic Field

Content
Title variants
Languages of publication
EN
Abstracts
EN
We present results of tight binding calculations demonstrating existence of degenerate electronic shells of Dirac fermions in narrow, charge neutral graphene quantum rings. We predict removal of degeneracy with finite magnetic field. We show, using a combination of tight binding and configuration interaction methods, that by filling a graphene ring with additional electrons this carbon based structure with half-filled shell acquires a finite magnetic moment.
Keywords
EN
Contributors
author
  • Institute for Microstructural Sciences, National Research Council of Canada, Ottawa, Canada
  • Institute of Physics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
author
  • Institute for Microstructural Sciences, National Research Council of Canada, Ottawa, Canada
author
  • Institute for Microstructural Sciences, National Research Council of Canada, Ottawa, Canada
References
  • 1. K.S. Novoselov, A.K. Geim, S.V. Morozov, D. Jiang, Y. Zhang, S.V. Dubonos, I.V. Grigorieva, A.A. Firsov, Science 306, 666 (2004)
  • 2. K.S. Novoselov, A.K. Geim, S.V. Morozov, D. Jiang, M.I. Katsnelson, I.V. Grigorieva, S.V. Dubonos, A.A. Firsov, Nature 438, 197 (2005)
  • 3. Y.B. Zhang, Y.W. Tan, H.L. Stormer, P. Kim, Nature 438, 201 (2005)
  • 4. S.Y. Zhou, G.-H. Gweon, J. Graf, A.V. Fedorov, C.D. Spataru, R.D. Diehl, Y. Kopelevich, D.-H. Lee, Steven G. Louie, A. Lanzara, Nature Phys. 2, 595 (2006)
  • 5. A.K. Geim, K.S. Novoselov, Nature Mater. 6, 183 (2007)
  • 6. A.H. Castro Neto, F. Guinea, N.M.R. Peres, K.S. Novoselov, A.K. Geim, Rev. Mod. Phys. 81, 109 (2009)
  • 7. M. Ezawa, Phys. Rev. B 76, 245415 (2007)
  • 8. J. Fernandez-Rossier, J.J. Palacios, Phys. Rev. Lett. 99, 177204 (2007)
  • 9. W.L. Wang, S. Meng, E. Kaxiras, Nano Lett. 8, 241 (2008)
  • 10. M. Bayer, M. Korkusinski, P. Hawrylak, T. Gutbrod, M. Michel, A. Forchel, Phys. Rev. Lett. 90, 186801 (2003)
  • 11. P. Recher, B. Trauzettel, A. Rycerz, Ya.M. Blanter, C.W.J. Beenakker, A.F. Morpurgo, Phys. Rev. B 76, 235404 (2007)
  • 12. D.S.L. Abergel, V.M. Apalkov, T. Chakraborty, arxiv:0806.2854
  • 13. A. Rycerz, C.W.J. Beenakker, arxiv:0709.3397
  • 14. D.A. Bahamon, A.L.C. Pereira, P.A. Schulz, Phys. Rev. B 79, 125414 (2009)
  • 15. S. Russo, J.B. Oostinga, D. Wehenkel, H.B. Heersche, S.S. Sobhani, L.M.K. Vandersypen, A.F. Morpurgo, Phys. Rev. B 77, 085413 (2008)
  • 16. T.G. Pedersen, C. Flindt, J. Pedersen, A.-P. Jauho, N.A. Mortensen, K. Pedersen, Phys. Rev. B 77, 245431 (2008)
  • 17. T.G. Pedersen, C. Flindt, J. Pedersen, N.A. Mortensen, A.-P. Jauho, K. Pedersen, Phys. Rev. Lett. 100, 136804 (2008)
  • 18. K. Nakada, M. Fujita, G. Dresselhaus, M.S. Dresselhaus, Phys. Rev. B 54, 17954 (1996)
  • 19. K. Wakabayashi, M. Fujita, H. Ajiki, M. Sigrist, Phys. Rev. B 59, 8271 (1999)
  • 20. R. Saito, G. Dresselhaus, M.S. Dresselhaus, Physical Properties of Carbon Nanotubes, Imperial College, London 1998
  • 21. M. Ezawa, Phys. Rev. B 73, 045432 (2006)
  • 22. D.S. Novikov, Phys. Rev. Lett. 99, 056802 (2007)
  • 23. C.L. Kane, E.J. Mele, Phys. Rev. Lett. 78, 1932 (2005)
  • 24. P. Recher, B. Trauzettel, A. Rycerz, Ya.M. Blanter, C.W.J. Beenakker, A.F. Morpurgo, Phys. Rev. B 76, 235404 (2007)
  • 25. P. Hawrylak, M. Korkusinski, in Single Quantum Dots: Fundamentals, Applications, and New Concepts, Ed. P. Michler, Topics in Applied Physics, Vol. 90, Springer-Verlag, Berlin 2003, p. 25
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv116n517kz
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.