Majorana Flat Bands in S -Wave Gapless Topological Superconductors

@article{Deng2014MajoranaFB,
  title={Majorana Flat Bands in S -Wave Gapless Topological Superconductors},
  author={Shusa Deng and G. Ortiz and A. Poudel and L. Viola},
  journal={Physical Review B},
  year={2014},
  volume={89},
  pages={140507}
}
  • Shusa Deng, G. Ortiz, +1 author L. Viola
  • Published 2014
  • Physics
  • Physical Review B
    • We demonstrate how the non-trivial interplay between spin-orbit coupling and nodeless $s$-wave superconductivity can drive a fully gapped two-band topological insulator into a time-reversal invariant gapless topological superconductor supporting symmetry-protected Majorana flat bands. We characterize topological phase diagrams by a ${\mathbb Z}_2 \times{\mathbb Z}_2$ partial Berry-phase invariant, and show that, despite the trivial crystal geometry, no unique bulk-boundary correspondence exists… CONTINUE READING
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    • 3
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    • 7
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    • 26
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    • 5
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    References

    SHOWING 1-10 OF 23 REFERENCES
    Topological Insulators and Topological Superconductors
    • 664
    • PDF
    Ann
    • 55,233
    Phys
    • Rev. Lett. 108, 036803 (2012); S. Deng, G. Ortiz, and L. Viola, Phys. Rev. B 87, 205414
    • 2013
    Phys
    • Rev. B 87, 054501
    • 2013
    Phys
    • Rev. Lett. 105, 217001 (2010); M. Sato, Y. Tanaka, K. Yada, and T. Yokoyama, Phys. Rev. B 83, 224511
    • 2011
    Phys
    • Rev. B 88, 060504(R)
    • 2013
    93
    • 66
    • 2011
    Europhys
    • Lett. 22, 199 (1993); G. Seyfarth, J. P. Brison, M.-A. Masson, J. Flouquet, K. Izawa, Y. Matsuda, H. Sugawara, and H. Sato, Phys. Rev. Lett. 95, 107004 (2005); M. A. Tanatar, J. Paglione, S. Nakatsuji, D. G. Hawthorn, E. Boaknin, R. W. Hill, F. Ronning, M. Sutherland, L. Taillefer, C. Petrovic, P. C
    • 2005
    Nature Phys
    • 7, 412 (2011); A. R. Akhmerov, Phys. Rev. B 82, 020509(R)
    • 2010
    Nucl
    • Phys. B 360, 362 (1991); L. Fu and C. L. Kane, Phys. Rev. Lett. 100, 096407 (2008); J. Linder, Y. Tanaka, T. Yokoyama, A. Sudbo, and N. Nagaosa, Phys. Rev. Lett. 104, 067001 (2010); R. M. Lutchyn, J. D. Sau, and S. D. Sarma, Phys. Rev. Lett. 105, 077001 (2010); B. Seradjeh, Phys. Rev. B 86, 121101(R
    • 2012