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Effective interactions and the nature of Cooper instability of spin polarons in the 2D Kondo lattice

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Abstract

It has been shown that two-and three-center interactions arise in the strong-coupling regime for the 2D Kondo lattice; these interactions both induce and suppress the Cooper instability. It is important that, in contrast to the t-J* model, the three-center interactions promote the Cooper pairing and ensure the appearance of the superconducting phase with a high critical temperature T c. The calculated concentration dependences of T c agree well with the experimental data for the cuprate superconductors.

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References

  1. V. J. Emery, Phys. Rev. Lett. 58, 2794 (1987).

    Article  ADS  Google Scholar 

  2. C. M. Varma, S. Schmitt-Rink, and E. Abrahams, Solid State Commun. 62, 681 (1987).

    Article  ADS  Google Scholar 

  3. A. F. Barabanov, R. O. Kuzian, and L. A. Maksimov, Phys. Rev. B 55, 4015 (1997).

    Article  ADS  Google Scholar 

  4. A. F. Barabanov, A. V. Mikheenkov, and A. M. Belemuk, Pis’ma Zh. Éksp. Teor. Fiz. 75, 118 (2002) [JETP Lett. 75, 107 (2002)].

    Google Scholar 

  5. A. F. Barabanov and A. M. Belemuk, Pis’ma Zh. Éksp. Teor. Fiz. 87, 725 (2008) [JETP Lett. 87, 628 (2008)].

    Google Scholar 

  6. J. C. Hubbard, Proc. R. Soc. London A 285, 542 (1965).

    Article  ADS  MathSciNet  Google Scholar 

  7. R. O. Zaitsev, Diagram Technique in the Theory of Superconductivity and Magnetism (Editorial URSS, Moscow, 2004) [in Russian].

    Google Scholar 

  8. N. M. Plakida, V. Yu. Yushankhay, and I. V. Stasyuk, Physica C 162–164, 787 (1989).

    Article  Google Scholar 

  9. V. V. Val’kov, T. A. Val’kova, D. M. Dzebisashvili, and S. G. Ovchinnikov, Pis’ma Zh. Éksp. Teor. Fiz. 75, 450 (2002) [JETP Lett. 75, 378 (2002)].

    Google Scholar 

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Authors and Affiliations

  1. Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russia

    V. V. Val’kov & M. M. Korovushkin

  2. Siberian Federal University, Krasnoyarsk, 660041, Russia

    V. V. Val’kov

  3. Siberian State Airspace University, Krasnoyarsk, 660074, Russia

    V. V. Val’kov

  4. Institute for High Pressure Physics, Russian Academy of Sciences, Troitsk, Moscow region, 142190, Russia

    A. F. Barabanov

Authors
  1. V. V. Val’kov
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  2. M. M. Korovushkin
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  3. A. F. Barabanov
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Correspondence to V. V. Val’kov.

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Original Russian Text © V.V. Val’kov, M.M. Korovushkin, A.F. Barabanov, 2008, published in Pis’ma v Zhurnal Éksperimental’noĭ i Teoreticheskoĭ Fiziki, 2008, Vol. 88, No. 6, pp. 426–430.

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Val’kov, V.V., Korovushkin, M.M. & Barabanov, A.F. Effective interactions and the nature of Cooper instability of spin polarons in the 2D Kondo lattice. Jetp Lett. 88, 370–374 (2008). https://doi.org/10.1134/S0021364008180069

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  • DOI: https://doi.org/10.1134/S0021364008180069

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