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Spin-Dependence in Asymmetric, V-Shaped-Notched Graphene Nanoribbons

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Abstract

An extended tight-binding (TB) model that includes up to third-nearest-neighbour hoppings and a mean-field Hubbard U interaction is used within the Landauer formalism to model the spin-dependent properties of a small zig-zag-edged graphene nanoribbon with a V-shaped notch. The TB calculation for this system is shown to accurately reproduce ab initio transport results obtained using the local spin-density approximation. The TB transport model is then applied to a larger V-shaped notched graphene nanoribbon that is beyond computational efficiency for ab initio transport calculations. In both cases, the TB model predicts well-defined spin-dependent properties.

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References

  1. A.K. Geim, K.S. Novoselov, Nat. Mater. 6, 183 (2007)

    Article  ADS  Google Scholar 

  2. Y.-W. Son, M.L. Cohen, S.G. Louie, Phys. Rev. Lett. 97, 216803 (2006)

    Article  ADS  Google Scholar 

  3. M.Y. Han, B. Özyilmaz, Y. Zhang, P. Kim, Phys. Rev. Lett. 98, 206805 (2007)

    Article  ADS  Google Scholar 

  4. X. Wang, Y. Ouyang, X. Li, H. Wang, J. Guo, H. Dai, Phys. Rev. Lett. 100, 206803 (2008)

    Article  ADS  Google Scholar 

  5. M.D. Fischbein, M. Drndić, arXiv:0808.2974v2 (2008)

  6. M. Wimmer, I. Adagideri, S. Berber, D. Tománek, K. Richter, Phys. Rev. Lett. 100, 177207 (2008)

    Article  ADS  Google Scholar 

  7. Y. Hancock, A.E. Smith, Physica E 18, 383 (2003)

    Article  ADS  Google Scholar 

  8. S. Datta, Electronic Transport in Mesoscopic Systems (Cambridge University Press, Cambridge, 2001)

    Google Scholar 

  9. F. Muñoz-Rojas, D. Jacob, J. Fernandez-Rossier, J.J. Palacios, Phys. Rev. B 74, 195417 (2006)

    Article  ADS  Google Scholar 

  10. F. Guinea, C. Tejedor, F. Flores, E. Louis, Phys. Rev. B 28, 4397 (1983)

    Article  ADS  Google Scholar 

  11. M. Brandbyge, J.-L. Mozos, P. Ordejón, J. Taylor, K. Stokbro, Phys. Rev. B 65, 165401 (2002)

    Article  ADS  Google Scholar 

  12. P. Ordejón, E. Artacho, J.M. Soler, Phys. Rev. B 53, R10441 (1996)

    Article  ADS  Google Scholar 

  13. J.M. Soler, E. Artacho, J. Gale, A. García, J. Junquera, P. Ordejón, D. Sánchez-Portal, J. Phys.: Condens. Matter 14, 2745 (2002)

    Article  ADS  Google Scholar 

  14. J. Tworzydlo, B. Trauzettel, M. Titov, A. Rycerz, C.W.J. Beenakker, Phys. Rev. Lett. 96, 246802 (2006)

    Article  ADS  Google Scholar 

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Authors and Affiliations

  1. Department of Engineering Physics, Helsinki University of Technology, 02015-HUT, Espoo, Finland

    Y. Hancock, K. Saloriutta, A. Uppstu & M. J. Puska

  2. Department of Engineering Physics and Helsinki Institute of Physics, Helsinki University of Technology, 02015-HUT, Espoo, Finland

    A. Harju

Authors
  1. Y. Hancock
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  2. K. Saloriutta
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  3. A. Uppstu
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  4. A. Harju
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  5. M. J. Puska
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Correspondence to Y. Hancock.

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Hancock, Y., Saloriutta, K., Uppstu, A. et al. Spin-Dependence in Asymmetric, V-Shaped-Notched Graphene Nanoribbons. J Low Temp Phys 153, 393–398 (2008). https://doi.org/10.1007/s10909-008-9838-y

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  • DOI: https://doi.org/10.1007/s10909-008-9838-y

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