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Enhancements of the superconducting transition temperature within the two-band model

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Abstract

The two-band model as introduced by Suhl, Matthias and Walker [Phys. Rev. Lett. 3, 552 (1959)] accounts for multiple energy bands in the vicinity of the Fermi energy which could contribute to electron pairing in superconducting systems. Here, extensions of this model are investigated wherein the effects of coupled superconducting order parameters with different symmetries and the presence of strong electron-lattice coupling on the superconducting transition temperature T c are studied . Substantial enhancements of T c are obtained from both effects.

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References

  1. J. Bardeen, L.N. Cooper, J. Schrieffer, Phys. Rev. 118, 1175 (1957)

    Article  MathSciNet  ADS  Google Scholar 

  2. H. Suhl, B.T. Matthias, L.R. Walker, Phys. Rev. Lett. 3, 552 (1959)

    Article  ADS  MATH  Google Scholar 

  3. V.A. Moskalenko, Fiz. Metal. Metalloved. 8, 503 (1959)

    Google Scholar 

  4. J. Kondo, Prog. Theor. Phys. 29, 1 (1963)

    Article  ADS  Google Scholar 

  5. B.T. Geilikman, R.O. Zaitsev, V.Z. Kresin, Sov. Phys. Solid State 9, 642 (1967)

    Google Scholar 

  6. V.Z. Kresin, J. Low Temp. Phys. 11, 519 (1973)

    Article  ADS  Google Scholar 

  7. S. Robaszkiewicz, R. Micnas, J. Ranninger, Phys. Rev. B 36, 180 (1987)

    Article  ADS  Google Scholar 

  8. V.Z. Kresin, S. Wolf, Physica C 169, 476 (1990)

    Article  ADS  Google Scholar 

  9. K.A. Müller, H. Keller, in Proc. NATO ASI “Material aspects of High-T c superconductivity: 10 years after the discovery” (Kluwer, 1997); K.A. Müller, Phil. Mag. Lett. 82, 279 (2002)

    Article  ADS  Google Scholar 

  10. A. Bussmann-Holder, A.R. Bishop, Z. Phys. B 90, 183 (1993)

    Article  ADS  Google Scholar 

  11. B.K. Chakraverty, Phys. Rev. B 48, 4047 (1993)

    Article  ADS  Google Scholar 

  12. A. Bussmann-Holder, A.R. Bishop, H. Büttner, T. Egami, R. Micnas, K.A. Müller, J. Phys.: Condens. Mater. 13, L545 (2001); A. Bussmann-Holder, K.A. Müller, R. Micnas, H. Büttner, A. Simon, A.R. Bishop, T. Egami, J. Phys.: Condens. Mater. 13, L168 (2001)

  13. A.Y. Liu, I.I. Mazin, J. Kortus, Phys. Rev. Lett. 87, 087005 (2001)

    Article  ADS  Google Scholar 

  14. H.D. Yang, J.-Y. Lin, H.H. Li, F.H. Hsu, C.J. Liu, S.-C. Li, R.C. Yu, C.-Q. Jin, Phys. Rev. Lett. 87, 167003 (2001)

    Article  ADS  Google Scholar 

  15. X.-K. Chen, M.J. Konstantinovi, J.C. Irwin, D.D. Lawrie, J.P. Franck, Phys. Rev. Lett. 87, 157002 (2001)

    Article  ADS  Google Scholar 

  16. E. Pavarini, I. Dasgupta, T. Saha-Dasgupta, O. Jepsen, O.K. Anderson, Phys. Rev. Lett. 87, 047003 (2001)

    Article  ADS  Google Scholar 

  17. J. Kortus, I.I. Mazin, K.D. Belashchenko, V.P. Antropov, L.L. Boyer, Phys. Rev. Lett. 86, 4656 (2001)

    Article  ADS  Google Scholar 

  18. I.G. Lang, Yu.A. Firsov, Soviet Physics JETP 16, 1301 (1963)

    ADS  Google Scholar 

  19. The parameters are t=56 meV, and the cutoff energy in the c-band is 22.3 meV

  20. A. Bussmann-Holder, H. Büttner, A. Simon, A.R. Bishop, Phil. Mag. B 80, 1955 (2000)

    Article  ADS  Google Scholar 

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Authors and Affiliations

  1. Max-Planck-Institute for Solid State Research, Heisenbergstr. 1, 70569, Stuttgart, Germany

    A. Bussmann-Holder

  2. Institute of Physics, A. Mickiewicz University, 85 Umultowska St., 61-614, Poznan, Poland

    R. Micnas

  3. Los Alamos National Laboratory, Theoretical Division, NM87545, Los Alamos, USA

    A. R. Bishop

Authors
  1. A. Bussmann-Holder
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  2. R. Micnas
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  3. A. R. Bishop
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Corresponding author

Correspondence to A. Bussmann-Holder.

Additional information

Received: 2 July 2003, Published online: 2 April 2004

PACS:

74.20.-z Theories and models of superconducting state

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Bussmann-Holder, A., Micnas, R. & Bishop, A.R. Enhancements of the superconducting transition temperature within the two-band model. Eur. Phys. J. B 37, 345–348 (2004). https://doi.org/10.1140/epjb/e2004-00065-5

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  • DOI: https://doi.org/10.1140/epjb/e2004-00065-5

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