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Quantum Monte Carlo study of the S4 symmetric microscopic model for iron-based superconductors

  • Guangkun LiuEmail author
  • Zhong-Bing Huang
  • Yong-Jun Wang
Regular Article
  • 24 Downloads

Abstract

The S4 symmetric microscopic model with two iso-spin components has been studied via constrained-path quantum Monte Carlo simulation. Our results demonstrate a stable (π, 0) or (0, π) magnetic order which is significantly enhanced on increasing both the Coulomb repulsion U and Hund’s coupling strength J. Also, our simulation indicates that the magnetic order tends to be in an orthomagnetic state, in which the nearest-neighbour magnetic moment are orthogonal to each other, rather than in a collinear antiferromagnetic order. Interestingly, when the system is doped away from half filling, the magnetic order is obviously elevated in the low doping density, and then significantly suppressed when more electrons are introduced. Meanwhile, we find that an A1gs±-wave pairing dominates all the singlet nearest-neighbour pairings, and is significantly enhanced by electron doping.

Graphical abstract

Keywords

Solid State and Materials 

References

  1. 1.
    I.I. Mazin, D.J. Singh, M.D. Johannes, M.H. Du, Phys. Rev. Lett. 101, 057003 (2008) ADSCrossRefGoogle Scholar
  2. 2.
    A.V. Chubukov, M.G. Vavilov, A.B. Vorontsov, Phys. Rev. B 80, 140515 (2009) ADSCrossRefGoogle Scholar
  3. 3.
    K. Kuroki, S. Onari, R. Arita, H. Usui, Y. Tanaka, H. Kontani, H. Aoki, Phys. Rev. Lett. 101, 087004 (2008) ADSCrossRefGoogle Scholar
  4. 4.
    S. Graser, T.A. Maier, P.J. Hirschfeld, D.J. Scalapino, New J. Phys. 11, 025016 (2009) ADSCrossRefGoogle Scholar
  5. 5.
    P. Lee, X.-G. Wen, Phys. Rev. B 78, 144517 (2008) ADSCrossRefGoogle Scholar
  6. 6.
    P.M.R. Brydon, M. Daghofer, C. Timm, J. Van den Beek, Phys. Rev. B 83, 060501 (2011) ADSCrossRefGoogle Scholar
  7. 7.
    S. Raghu, X.-L. Qi, C.-X. Liu, D.J. Scalapino, S.-C. Zhang, Phys. Rev. B 77, 220503 (2008) ADSCrossRefGoogle Scholar
  8. 8.
    M. Daghofer, A. Nicholson, A. Moreo, E. Dagotto, Phys. Rev. B 81, 014511 (2010) ADSCrossRefGoogle Scholar
  9. 9.
    D. Johnston, Adv. Phys. 59, 803 (2010) ADSCrossRefGoogle Scholar
  10. 10.
    J. Hu, N. Hao, Phys. Rev. X 2, 021009 (2012) Google Scholar
  11. 11.
    T. Ma, H.Q. Lin, J. Hu, Phys. Rev. Lett. 110, 107002 (2013) ADSCrossRefGoogle Scholar
  12. 12.
    Y. Wu, G. Liu, T. Ma, Europhys. Lett. 104, 27013 (2013) ADSCrossRefGoogle Scholar
  13. 13.
    G.-K. Liu, Z.-B. Huang, Y.-J. Wang, J. Phys.: Condens. Matter 26, 325601 (2014) Google Scholar
  14. 14.
    G. Liu, N. Kaushal, S. Li, C.B. Bishop, Y. Wang, S. Johnston, G. Alvarez, A. Moreo, E. Dagotto, Phys. Rev. E 93, 063313 (2016) ADSCrossRefGoogle Scholar
  15. 15.
    A. Moreo, M. Daghofer, A. Nicholson, E. Dagotto, Phys. Rev. B 80, 104507 (2009) ADSCrossRefGoogle Scholar
  16. 16.
    A. Nicholson, W. Ge, J. Riera, M. Daghofer, A. Moreo, E. Dagotto, Phys. Rev. B 85, 024532 (2012) ADSCrossRefGoogle Scholar
  17. 17.
    M. Daghofer, A. Moreo, J.A. Riera, E. Arrigoni, D.J. Scalapino, E. Dagotto, Phys. Rev. Lett. 101, 237004 (2008) ADSCrossRefGoogle Scholar
  18. 18.
    N. Hao, Y. Wang, J. Hu, Europhys. Lett. 104, 57007 (2013) ADSCrossRefGoogle Scholar
  19. 19.
    J. Hu, J. Phys.: Conf. Ser. 449, 012017 (2013) Google Scholar
  20. 20.
    E. Dagotto, T. Hotta, A. Moreo, Phys. Rep. 344, 1 (2001) ADSCrossRefGoogle Scholar
  21. 21.
    S. Zhang, J. Carlson, J.E. Gubernatis, Phys. Rev. B 55, 7464 (1997) ADSCrossRefGoogle Scholar
  22. 22.
    S. Zhang, J. Carlson, J.E. Gubernatis, Phys. Rev. Lett. 78, 4486 (1997) ADSCrossRefGoogle Scholar
  23. 23.
    J.E. Hirsch, Phys. Rev. B 28, 4059 (1983) ADSCrossRefGoogle Scholar
  24. 24.
    S. Sakai, R. Arita, H. Aoki, Phys. Rev. B 70, 172504 (2004) ADSCrossRefGoogle Scholar
  25. 25.
    A. Moreo, M. Daghofer, J.A. Riera, E. Dagotto, Phys. Rev. B 79, 134502 (2009) ADSCrossRefGoogle Scholar
  26. 26.
    Y. Wan, Q.-H. Wang, Europhys. Lett. 85, 57007 (2009) ADSCrossRefGoogle Scholar
  27. 27.
    J. Lorenzana, G. Seibold, C. Ortix, M. Grilli, Phys. Rev. Lett. 101, 186402 (2008) ADSCrossRefGoogle Scholar
  28. 28.
    P. Dai, J. Hu, E. Dagotto, Nat. Phys. 8, 709 (2012) CrossRefGoogle Scholar
  29. 29.
    E. Berg, S.A. Kivelson, D.J. Scalapino, Phys. Rev. B 81, 172504 (2010) ADSCrossRefGoogle Scholar
  30. 30.
    Z.B. Huang, H.Q. Lin, J.E. Gubernatis, Phys. Rev. B 63, 115112 (2001) ADSCrossRefGoogle Scholar
  31. 31.
    Z.B. Huang, H.Q. Lin, J.E. Gubernatis, Phys. Rev. B 64, 205101 (2001) ADSCrossRefGoogle Scholar

Copyright information

© EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Beijing Computational Science Research CenterBeijingP.R. China
  2. 2.Department of PhysicsBeijing Normal UniversityBeijingP.R. China
  3. 3.Faculty of Physics and Electronic Technology, Hubei UniversityWuhanP.R. China

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