Skip to main content
SpringerLink
Log in

Electronic structure and superconductivity of κ-(BEDT-TTF)2X salts

  • Solids
  • Published:
Journal of Experimental and Theoretical Physics Aims and scope Submit manuscript

Abstract

We have analyzed the electronic structure and superconducting properties of layered crystals based on BEDT-TTF salts (hereafter denoted as ET), in which intramolecular interaction among electrons is important. For the case of realistic κ-packing of ET-molecules in a plane of ET2 dimers we have calculated the electron density of states. Using the calculated electronic structure, we have analyzed the symmetry of the anisotropic superconducting pairing. The critical value of the effective attraction between electrons for formation of a bound pair in an empty lattice has been estimated. The relation between the nodes of the d-type order parameter on the anisotropic Fermi surface and superconducting properties of the condensate is discussed in the Bardeen-Cooper-Schrieffer (BCS) model. The results are in agreement with the known band parameters of the normal phase and measurements of the magnetic field penetration depth, heat capacity as a function of temperature in the low-temperature range, and NMR in κ-ET2X superconducting salts.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. H. Akamatsu and H. Inokuchi, J. Chem. Phys. 18, 810 (1950); H. Akamatsu, H. Inokuchi, and Y. Matsunaga, Nature 173, 168 (1954).

    Google Scholar 

  2. D. Jerome, A. Mazaud, M. Ribault, and K. Bechgaard, J. Phys. Lett. 41, L95 (1980); K. Bechgaard, C. S. Jacobsen, K. Mortensen et al., Solid State Commun. 33, 1119 (1980).

    Google Scholar 

  3. É. B. Yagubskii, I. F. Shchegolev, V. N. Laukhin et al., JETP Lett. 39, 12 (1984); V. F. Kaminskii, T. G Prokhorova, R. P. Shibaeva et al., JETP Lett. 39, 17 (1984).

    ADS  Google Scholar 

  4. H. Urayama, H. Yamochi, G. Saito et al., Chem. Lett. 1, 55 (1988).

    Google Scholar 

  5. M. V. Kartsovnik, V. N. Laukhin, V. I. Nizhankovskii, and A. A. Ignat’ev, JETP Lett. 47, 363 (1988); M. V. Kartsovnik, P. A. Kononovich, V. N. Laukhin, I. F. Shchegolev, JETP Lett. 48, 541 (1988).

    ADS  Google Scholar 

  6. K. Murata, N. Toyota, Y. Honda et al., J. Phys. Soc. Jpn. 57, 1540 (1988).

    Article  Google Scholar 

  7. D. Jerome, in Organic Conductors, ed. by J.-P. Farges, Marcel Dekker (1994), Ch. 10, p. 405.

  8. K. Kanoda, Kotai Buzuri, Solid State Phys. (Tokyo) [in Japanese] 30, 240 (1995).

    Google Scholar 

  9. T. Ishiguro and K. Yamaji, Organic Superconductors, Solid State Science Vol. 88, Springer-Verlag, Tokyo (1990).

    Google Scholar 

  10. R. B. Lyubovskii, S. I. Pesotskii, A. Gilevskii, and R. N. Lyubovskaya, Zh. Éksp. Teor. Fiz. 107, 1698 (1995) [JETP 80, 946 (1995)].

    Google Scholar 

  11. L. N. Bulaevskii, Adv. Phys. 37, 443 (1988).

    Article  ADS  Google Scholar 

  12. N. Toyota, E. W. Fenton, T. Sasaki, and M. Tachiki, Solid State Commun. 72, 859 (1989).

    Article  Google Scholar 

  13. H. Kino and H. Fukuyama, J. Phys. Soc. Jpn. 65, 2158 (1996).

    Article  Google Scholar 

  14. V. Ivanov and K. Kanoda, Physica C 268, 205 (1996); Mol. Cryst. Liq. Cryst. 285, 211 (1996).

    Article  ADS  Google Scholar 

  15. V. A. Ivanov, Physica C 271, 127 (1996).

    Article  ADS  Google Scholar 

  16. V. Ivanov, K. Yakushi, and E. Ugolkova, Physica C 275, 26 (1997).

    Article  ADS  Google Scholar 

  17. E. Z. Kuchinskii, M. V. Sadovskii, M. A. Érkabaev, Zh. Éksp. Teor. Fiz. 104, 3550 (1993) [JETP 77, 692 (1993)].

    Google Scholar 

  18. R. Fehrenbacher and M. R. Norman, Phys. Rev. B 50, 3495 (1994).

    Article  ADS  Google Scholar 

  19. A. A. Abrikosov, Physica C 214, 103 (1993).

    ADS  Google Scholar 

  20. L. A. Openov, V. F. Elesin, and A. V. Krasheninnikov, Physica C 275, 53 (1996).

    ADS  Google Scholar 

  21. A. I. Posazhennikova and M. V. Sadovskii, JETP Lett. 63, 358 (1996).

    Article  ADS  Google Scholar 

  22. K. Oshima, T. Mori, H. Inokuchi et al., Phys. Rev. B 38, 938 (1988).

    Article  ADS  Google Scholar 

  23. Y. Hasegawa, P. Lederer, T. M. Rice et al., Phys. Rev. Lett. 63, 907 (1989).

    Article  ADS  Google Scholar 

  24. V. A. Moskalenko, M. E. Palistrant, and V. M. Vakalyuk, Usp. Fiz. Nauk 161, 155 (1991) [Sov. Phys. Usp. 34, 265 (1991)].

    Google Scholar 

  25. A. A. Gorbatsevich and Yu. V. Kopaev, JETP Lett. 51, 373 (1990).

    ADS  Google Scholar 

  26. K. Miyakc, Prog. Theor. Phys. 69, 1794 (1983).

    ADS  Google Scholar 

  27. M. Randeria, J.-M. Duan, and L.-Y. Shieh, Phys. Rev. Lett. 62, 981 (1989).

    ADS  Google Scholar 

  28. V. A. Ivanov, P. E. Kornilovich, and V. V. Bobryshev, Physica C 235–240, 2369 (1994).

    Google Scholar 

  29. M. Yu. Kagan and T. M. Rice, J. Phys.: Condens. Matter 6, 3771 (1994).

    Article  ADS  Google Scholar 

  30. R. Micnas, J. Ranninger, and S. Robaszkiewicz, J. Phys. C 21, L145 (1988).

    Article  ADS  Google Scholar 

  31. F. J. Ohkawa and H. Fukuyama, J. Phys. Soc. Jpn. 53, 4344 (1984).

    Google Scholar 

  32. C. Lacroix, C. Bastide, and A. da Rosa Simoes, Physica B 163, 124 (1990).

    Article  ADS  Google Scholar 

  33. Superconductivity, ed. by R. D. Parks, Plenum Press, New York-London (1981).

    Google Scholar 

  34. M. Frick and T. Schneider, Z. Phys. B 78, 159 (1990).

    Article  Google Scholar 

  35. M. Dressel, O. Klein, G. Grüner et al., Phys. Rev. B 50, 13603 (1994).

  36. M. Lang, N. Toyota, T. Sasaki, and H. Sato, Phys. Rev. Lett. 69, 1443 (1992).

    ADS  Google Scholar 

  37. Y. Nakazawa and K. Kanoda, Phys. Rev. B 55, 8670 (1997); Physica C 282–287, 1897 (1997).

    Article  ADS  Google Scholar 

  38. B. T. Geilikman, Usp. Fiz. Nauk 88, 327 (1966).

    Google Scholar 

  39. G. E. Volovik and L. P. Gor’kov, Zh. Éksp. Teor. Fiz. 88, 1412 (1985) [Sov. Phys. JETP 61, 843 (1985)].

    ADS  Google Scholar 

  40. Y. Hasegawa, J. Phys. Soc. Jpn. 65, 3131 (1996).

    Google Scholar 

  41. B. Andraka, G. R. Stewart, K. D. Carbon et al., Phys. Rev. B 42, 9963 (1990).

    ADS  Google Scholar 

  42. Y. Nakazawa, A. Kawamoto, and K. Kanoda, Phys. Rev. B 52, 12890 (1995).

    Google Scholar 

  43. T. Ichinomiya and K. Yamada, J. Phys. Soc. Jpn. 65, 1764 (1996).

    Article  Google Scholar 

  44. S. M. de Soto, C. P. Slichter, A. M. Kini et al., Phys. Rev. B 52, 10364 (1995).

  45. H. Mayaffre, P. Wzietek, D. Jerome et al., Phys. Rev. Lett. 75, 4122 (1995).

    ADS  Google Scholar 

  46. K. Kanoda, K. Miyagawa, A. Kawamoto, and Y. Nakazawa, Phys. Rev. B 54, 76 (1996).

    Article  ADS  Google Scholar 

  47. Yu. V. Kopaev and L. R. Tagirov, JETP Lett. 49, 499 (1989).

    ADS  Google Scholar 

  48. K. A. Moler, D. J. Baar, J. C. Urbach et al., Phys. Rev. Lett. 73, 2744 (1994).

    Article  ADS  Google Scholar 

  49. T. Imai, T. Shimizu, H. Yasuoka et al., J. Phys. Soc. Jpn. 57, 2280 (1988).

    Google Scholar 

  50. Y. Kitaoka, S. Hiramatsu, Y. Konori et al., Physica C 153, 83 (1988).

    Article  ADS  Google Scholar 

  51. N. Bulut and D. J. Scalapino, Phys. Rev. Lett. 67, 2898 (1991).

    Article  ADS  Google Scholar 

  52. J. P. Lu, Modern Phys. Lett. B 6, 547 (1992).

    ADS  Google Scholar 

  53. J. Caulfield, W. Lubczynski, F. L. Pratt et al., J. Phys.: Condens. Matter 6, 2911 (1994).

    Article  ADS  Google Scholar 

  54. F. L. Pratt, J. Singleton, M. Kurmoto et al., in The Physics and Chemistry of Organic Superconductors, ed. by G. Saito and S. Kagoshima, Springer-Verlag, Berlin-Heidelberg (1990), p. 200.

    Google Scholar 

  55. A. Ugawa, G. Ojima, K. Yakushi, and H. Kuroda, Phys. Rev. B 38, 5122 (1988).

    Article  ADS  Google Scholar 

  56. M. V. Kartsovnik, G. Yu. Logvenov, H. Ito et al., Phys. Rev. B 52, 15715 (1995).

    Google Scholar 

  57. T. Sasaki, H. Sato, and N. Toyota, Physica C 185–189, 2687 (1991).

    Google Scholar 

  58. C.-P. Heidman, H. Müller, K. Biberacher et al., Synth. Met. 41–43, 2029 (1991).

    Google Scholar 

  59. J. Wosnitza, G. W. Crabtree, H. H. Wang, et al., Phys. Rev. B 45, 3018 (1992).

    Article  ADS  Google Scholar 

  60. J. Caulfield, J. Singleton, F. L. Pratt et al., Synth. Met. 61, 63 (1993).

    Google Scholar 

  61. T. Komatsu, N. Matsukawa, T. Inoue, and G. Saito, J. Phys. Soc. Jpn. 65, 1340 (1993).

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. N. S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 117907, Moscow, Russia

    V. A. Ivanov, E. A. Ugolkova & M. E. Zhuravlev

Authors
  1. V. A. Ivanov
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. E. A. Ugolkova
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. M. E. Zhuravlev
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Zh. Éksp. Teor. Fiz. 113, 715–733 (February 1998)

Rights and permissions

Reprints and permissions

About this article

Cite this article

Ivanov, V.A., Ugolkova, E.A. & Zhuravlev, M.E. Electronic structure and superconductivity of κ-(BEDT-TTF)2X salts. J. Exp. Theor. Phys. 86, 395–404 (1998). https://doi.org/10.1134/1.558442

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1134/1.558442

Keywords

Search

Navigation