Journal of Superconductivity and Novel Magnetism

, Volume 24, Issue 3, pp 1173–1176 | Cite as

Magnetic Rare-Earth Impurity Resonance Bound States in Iron-Based Superconductors

Original Paper

Abstract

Starting from an Anderson model for two-orbital model of electron and hole conduction bands which hybridized with the localized impurity spin, we investigate the effect of magnetic impurities on the local quasiparticle density of states (LDOS) in iron-based superconductors. We consider extended s-wave (s+−) superconducting gap symmetry with higher harmonic correction. The impurity-induced bound states are a probe for the nodal structure of the extended s-wave symmetry in ferropnictides.

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References

  1. 1.
    Kamihara, Y., Watanabe, T., Hirano, M., Hosono, H.: J. Am. Chem. Soc. 130, 3296 (2008) CrossRefGoogle Scholar
  2. 2.
    Mazin, I.I., Singh, D.J., Johannes, M.D., Du, M.H.: Phys. Rev. Lett. 101, 057003 (2008) ADSCrossRefGoogle Scholar
  3. 3.
    Kuroki, K., Onari, S., Arita, R., Usui, H., Tanaka, Y., Kontani, H., Aoki, H.: Phys. Rev. Lett. 101, 087004 (2008) ADSCrossRefGoogle Scholar
  4. 4.
    Chubukov, A.V., Efremov, D.V., Eremin, I.: Phys. Rev. B 78, 134512 (2008) ADSCrossRefGoogle Scholar
  5. 5.
    Hashimoto, K., Yamashita, M., Kasahara, S., Senshu, Y., Nakata, N., Tonegawa, S., Ikada, K., Serafin, A., Carrington, A., Terashima, T., Ikeda, H., Shibauchi, T., Matsuda, Y.: Phys. Rev. B 81, 220501(R) (2010) ADSCrossRefGoogle Scholar
  6. 6.
    Chubukov, A.V., Vavilov, M.G., Vorontsov, A.B.: Phys. Rev. B 80, 140515 (2009) ADSCrossRefGoogle Scholar
  7. 7.
    Thomale, R., Platt, Ch., Hanke, W., Bernevig, B.A.: arXiv:1002.3599 (unpublished)
  8. 8.
    Kuroki, K., Usui, H., Onari, S., Arita, R., Aoki, H.: Phys. Rev. B 79, 224511 (2009) ADSCrossRefGoogle Scholar
  9. 9.
    Maier, T.A., Graser, S., Scalapino, D.J., Hirschfeld, P.J.: Phys. Rev. B 79, 224510 (2009) ADSCrossRefGoogle Scholar
  10. 10.
    Shiba, H.: Prog. Theor. Phys. 40, 435 (1968) ADSCrossRefGoogle Scholar
  11. 11.
    Balatsky, A.V., Vekhter, I., Zhu, J.-X.: Rev. Mod. Phys. 78, 373 (2006) ADSCrossRefGoogle Scholar
  12. 12.
    Bianconi, A.: J. Supercond. Nov. Magn. 18, 25–36 (2005) CrossRefGoogle Scholar
  13. 13.
    Caivano, R., Fratini, M., Poccia, N., Ricci, A., Puri, A., Ren, Z.-A., Dong, X.-L., Yang, J., Lu, W., Zhao, Z.-X., Barba, L., Bianconi, A.: Supercond. Sci. Technol. 22, 014004 (2009) ADSCrossRefGoogle Scholar
  14. 14.
    Hudson, E.W., Lang, K.M., Madhavan, V., Pan, S.H., Eisaki, H., Uchida, S., Davis, J.C.: Nature 411, 920 (2001) ADSCrossRefGoogle Scholar
  15. 15.
    Akbari, A., Eremin, I., Thalmeier, P.: Phys. Rev. B 81, 014524 (2010) ADSCrossRefGoogle Scholar
  16. 16.
    Nakayama, K., Sato, T., Richard, P., Kawahara, T., Sekiba, Y., Qian, T., Chen, G.F., Luo, J.L., Wang, N.L., Ding, H., Takahashi, T.: Phys. Rev. Lett. 105, 197001 (2010) ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  1. 1.Theoretische Physik IIIRuhr-Universität BochumBochumGermany
  2. 2.Max Planck Institute for the Chemical Physics of SolidsDresdenGermany

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