Journal of Low Temperature Physics

, Volume 179, Issue 1–2, pp 69–74 | Cite as

Transmission Through Gate-Induced Magnetic Islands on Graphene Nanoribbons

  • R. M. Guzmán Arellano
  • Gonzalo Usaj


We study the spin-dependent transmission through a potential barrier in a zigzag graphene nanoribbon. In particular, we consider the effect of the magnetic order of the ribbon induced by the modulation of the local density introduced by the barrier. We model the system using an Anderson–Hubbard model that we treat in the mean field approximation. We solve this problem self-consistently and calculate the transmission coefficient using the recursive Green function method. We find that Fano-like interference dips appear on one of the spin channels as the result of the presence of spin polarized edge states in the barrier.


Graphene Spin-dependent transport Nanoribbons 



We acknowledge financial support from PICT Bicentenario 2010-1060 from ANPCyT, PIP 11220080101821 and 11220110100832 from CONICET and 06/C415 SeCyT-UNC.


  1. 1.
    A.H. Castro Neto, F. Guinea, N.M.R. Peres, K.S. Novoselov, A.K. Geim, Rev. Mod. Phys. 81, 109 (2009)CrossRefADSGoogle Scholar
  2. 2.
    L. Brey, H.A. Fertig, Phys. Rev. B 73, 235411 (2006)CrossRefADSGoogle Scholar
  3. 3.
    K. Sasaki, S. Murakami, R. Saito, Appl. Phys. Lett. 88, 113110 (2006)CrossRefADSGoogle Scholar
  4. 4.
    Y.-W. Son, M.L. Cohen, S.G. Louie, Nature 444, 347 (2007)CrossRefADSGoogle Scholar
  5. 5.
    S.M.-M. Dubois, Z. Zanolli, X. Declerck, J.C. Charliera, Eur. Phys. J. B 72, 1 (2009)CrossRefADSGoogle Scholar
  6. 6.
    L. Yang, C.H. Park, Y.-W. Son, M.L. Cohen, S.G. Louie, Phys. Rev. Lett. 99, 186801 (2007)CrossRefADSGoogle Scholar
  7. 7.
    H. Feldner, Z.Y. Meng, A. Honecker, D. Cabra, S. Wessel, F.F. Assaad, Phys. Rev. B 81, 115416 (2010)CrossRefADSGoogle Scholar
  8. 8.
    J. Jung, A.H. MacDonald, Phys. Rev. B 79, 235433 (2009)CrossRefADSGoogle Scholar
  9. 9.
    J. Jung, A.H. MacDonald, Phys. Rev. B 81, 195408 (2010)CrossRefADSGoogle Scholar
  10. 10.
    G. Usaj, Phys. Rev. B 80, 081414(R) (2009)CrossRefADSGoogle Scholar
  11. 11.
    K. Sawada, F. Ishii, M. Saito, S. Okada, T. Kawai, Nano Lett. 9(1), 269 (2009)CrossRefADSGoogle Scholar
  12. 12.
    U. Fano, Phys. Rev. 124, 1866 (1961)CrossRefADSMATHGoogle Scholar
  13. 13.
    H.M. Pastawski, E. Medina, Rev. Mex. Fis. 47(S1), 1 (2001)Google Scholar
  14. 14.
    J. Baringhaus, M. Ruan, F. Edler, A. Tejeda, M. Sicot, A. Taleb-Ibrahimi, A. Li, Z. Jiang, E.H. Conrad, C. Berger, C. Tegenkamp, W.A. de Heer, Nature 506, 349 (2014)CrossRefADSGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Centro Atómico Bariloche and Instituto BalseiroComisión Nacional de Energía Atómica and CONICETSan Carlos de BarilocheArgentina

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