Skip to main content
SpringerLink
Log in

On the specific features and transformation of the band structure of mercury-based HTSC compounds

  • Metals and Superconductors
  • Published:
Physics of the Solid State Aims and scope Submit manuscript

Abstract

A systematic analysis of the temperature dependences of the thermopower S(T) for different phases of the HgBa2Ca n−1Cu n O2n+2+δ family (n=1, 2, 3) at different doping levels is performed in the framework of a narrow-band phenomenological model. Quantitative estimates of the main parameters of the band responsible for conduction in the normal phase of HgBa2Ca n−1Cu n O2n+2+δ are given for optimally doped samples. The character of the variation in these parameters with an increasing number n of the copper-oxygen layers is discussed. A trend toward broadening of the conduction band with increasing n is revealed, which can be due to the increase of the density-of-states (DOS) peak near the Fermi level with an increasing number of the CuO2 layers responsible for the formation of the conduction band. It is found that an increase in the number n leads to an increase in the fraction of localized carriers in the band owing to a more defective structure observed in the more complex phases of HgBa2Ca n−1Cu n O2n+2+δ. The variations in the band-structure parameters in going from under-to overdoped compositions in the HgBa2Ca n−1Cu n O2n+2+δ family are also discussed.

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. A. Schilling, M. Cantoni, J. D. Guo, and H. R. Ott, Nature 363(6424), 56 (1993).

    Article  ADS  Google Scholar 

  2. C. W. Chu, L. Gao, F. Chen, et al., Nature 365(6444), 323 (1993).

    Article  ADS  Google Scholar 

  3. L. Gao, Philos. Mag. Lett. 68(6), 345 (1993).

    Google Scholar 

  4. L. Gao, Y. Y. Xue, F. Chen, et al., Phys. Rev. B 50(6), 4260 (1994).

    Article  ADS  Google Scholar 

  5. X. Zhou, M. Cardona, C. W. Chu, et al., Phys. Rev. B 54(9), 6137 (1996).

    ADS  Google Scholar 

  6. B. A. Scott, E. Y. Suard, C. C. Tsuei, et al., Physica C (Amsterdam) 230(3–4), 239 (1994).

    ADS  Google Scholar 

  7. Q. Xiong, Y. Y. Xue, Y. Cao, et al., Phys. Rev. B 50(14), 10346 (1994).

  8. C. K. Subramaniam, M. Paranthaman, and A. B. Kaiser, Physica C (Amsterdam) 222(1–2), 47 (1994).

    ADS  Google Scholar 

  9. Y. T. Ren, J. Clayhold, F. Chen, et al., Physica C (Amsterdam) 217(1–2), 6 (1993).

    ADS  Google Scholar 

  10. C. K. Subramaniam, M. Paranthaman, and A. B. Kaiser, Phys. Rev. B 51(2), 1330 (1995).

    Article  ADS  Google Scholar 

  11. A. Carrington, D. Colson, Y. Dumont, et al., Physica C (Amsterdam) 234(1–2), 1 (1994).

    ADS  Google Scholar 

  12. F. Chen, Q. Xiong, Y. Y. Xue, et al., Preprint No. 96: 006 (Texas Center for Superconductivity, 1996).

  13. V. E. Gasumyants, V. I. Kaidanov, and E. V. Vladimirskaya, Physica C (Amsterdam) 248(2–3), 255 (1995).

    ADS  Google Scholar 

  14. V. É. Gasumyants, E. V. Vladimirskaya, M. V. Elizarova, and I. B. Patrina, Fiz. Tverd. Tela (St. Petersburg) 41(3), 389 (1999) [Phys. Solid State 41, 350 (1999)].

    Google Scholar 

  15. M. V. Elizarova and V. É. Gasumyants, Fiz. Tverd. Tela (St. Petersburg) 41(8), 1363 (1999) [Phys. Solid State 41, 1248 (1999)].

    Google Scholar 

  16. N. V. Ageev, V. É. Gasumyants, and V. I. Kaidanov, Fiz. Tverd. Tela (St. Petersburg) 37(7), 2152 (1995) [Phys. Solid State 37, 1171 (1995)].

    Google Scholar 

  17. V. E. Gasumyants, N. V. Ageev, E. V. Vladimirskaya, et al., Phys. Rev. B 53(2), 905 (1996).

    Article  ADS  Google Scholar 

  18. A. B. Kaiser and C. Ucher, in Studies of High Temperature Superconductors, Ed. by A. V. Narlikar (Nova Science, New York, 1991), Vol. 7 (and references therein).

    Google Scholar 

  19. F. Chen, Z. J. Huang, R. L. Meng, et al., Phys. Rev. B 48(21), 16047 (1993).

  20. D. L. Novikov, O. N. Mryasov, and A. J. Freeman, Physica C (Amsterdam) 219(1–2), 246 (1994).

    ADS  Google Scholar 

  21. D. L. Novikov, O. N. Mryasov, and A. J. Freeman, Physica C (Amsterdam) 222(1–2), 38 (1994).

    ADS  Google Scholar 

  22. C. W. Chu, Preprint No. 96: 011 (Texas Center for Superconductivity, 1996).

  23. J. D. Jorgensen, D. G. Hinks, O. Chmaissem, et al., in Proceedings of the First Polish-US Conference on High Temperature Superconductivity (Springer-Verlag, New York, 1996).

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. St. Petersburg State Technical University, ul. Politechnicheskaya 29, St. Petersburg, 195251, Russia

    M. V. Elizarova, A. O. Lukin & V. É. Gasumyants

Authors
  1. M. V. Elizarova
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. A. O. Lukin
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. V. É. Gasumyants
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

__________

Translated from Fizika Tverdogo Tela, Vol. 42, No. 12, 2000, pp. 2123–2131.

Original Russian Text Copyright © 2000 by Elizarova, Lukin, Gasumyants.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Elizarova, M.V., Lukin, A.O. & Gasumyants, V.É. On the specific features and transformation of the band structure of mercury-based HTSC compounds. Phys. Solid State 42, 2188–2196 (2000). https://doi.org/10.1134/1.1332138

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1134/1.1332138

Keywords

Search

Navigation