Advertisement

Journal of Superconductivity

, Volume 7, Issue 2, pp 319–322 | Cite as

Transport properties of oxygen-deficient YBa2Cu3O7−x thin films

  • R. Hopfengärtner
  • M. Lippert
  • W. Dorsch
  • H. Dietrich
  • G. Kreiselmeyer
  • G. Saemann-Ischenko
XI. Transport Properties

Abstract

We report on measurements of the in-plane resistivityρ and Hall coefficientR H (B∥c) of various oxygen-deficient epitaxial films of YBa2Cu3O7−x in the normal state. The superconducting transition temperaturesT c of the samples vary from 14 to 90 K. Both the resistivity and the Hall coefficient exhibit a strong dependence on the oxygen content and the temperature. Asx increases,T c decreases continuously, whileρ andR H gradually increase in magnitude. Furthermore, also the characteristic linear dependences ofραT andRHαT −1 of the highly doped compounds changes to a nonlinear behavior for the samples withT c lower than 60 K. The unusual doping and temperature dependence ofR H will be compared to the predictions of our calculations, based on a two-dimensional tight-binding model using the relaxation-time approximation. The model considers also the next-nearest-neighbor hopping, which strongly influences the predicted Hall coefficient. Additionally, the cotangent of the Hall angle cot(Θ H ) is discussed in the framework of the two-dimensional Luttinger liquid theory.

Key words

Thin films normal state properties electronic structures 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    N. P. Ong, in:Physical Properties of High-T c Superconductors II, D. M. Ginzberg, ed. (World Scientific, Singapore, 1990), and references therein.Google Scholar
  2. 2.
    S. Uchida, H. Takagi, H. Ishii, H. Eisaki, T. Yabe, S. Tajima, and S. Tanaka,Jpn. J. Appl. Phys. 26, 440 (1987).Google Scholar
  3. 3.
    N. P. Ong, Z. Z. Wang, J. Clayhold, J. M. Tarascon, L. H. Greene, and W. R. McKinnon,Phys. Rev. B 35, 8807 (1987).Google Scholar
  4. 4.
    M. Lippert, W. Dorsch, and G. Saemann-Ischenko, to be published.Google Scholar
  5. 5.
    R. Hopfengärtner, B. Hensel, and G. Saemann-Ischenko,Phys. Rev. B 44, 741 (1991).Google Scholar
  6. 6.
    B. Wuyts, E. Osquiguil, M. Maenhoudt, S. Libbrecht, Z. X. Gao, and Y. U. Bruynseraede,Phys. Rev. B 47, 5512 (1993).Google Scholar
  7. 7.
    E. C. Jones, D. K. Christen, J. R. Thompson, R. Feenstra, S. Zhu, D. H. Lowndes, J. M. Phillips, M. P. Siegal, and J. D. Budai,Phys. Rev. B 47, 8986 (1993).Google Scholar
  8. 8.
    P. Xiong, G. Xiao, and X. D. Wu,Phys. Rev. B 47, 5516 (1993).Google Scholar
  9. 9.
    T. R. Chien, D. A. Brawner, Z. Z. Wang, and N. P. Ong,Phys. Rev. B 43, 6242 (1991).Google Scholar
  10. 10.
    R. Hopfengärtner, M. Leghissa, G. Kreiselmeyer, B. Holzapfel, P. Schmitt, and G. Saemann-Ischenko,Phys. Rev. B 47, 5992 (1993).Google Scholar
  11. 11.
    Z. Z. Wang, J. Clayhold, N. P. Ong, J. M. Tarascon, L. H. Greene, W. R. McKinnon, and G. W. Hull,Phys. Rev. B 36. 7222 (1987).Google Scholar
  12. 12.
    J. R. Cooper, S. D. Obertelli, A. Carrington, and J. W. Loram,Phys. Rev. B 44, 12086 (1991).Google Scholar
  13. 13.
    L. Forro, M. Raki, J. Y. Henry, and C. Ayache,Solid State Commun. 69, 1097 (1989).Google Scholar
  14. 14.
    Z. Z. Wang, D. A. Brawner, T. R. Chien, N. P. Ong, J. M. Tarascon, and E. Wang,Physica C 162–164, 1013 (1989).Google Scholar
  15. 15.
    O. Laborde, M. Potel, P. Gougeon, J. Padiou, J. C. Levet, and H. Noel,Phys. Lett. 147, 525 (1990).Google Scholar
  16. 16.
    J. Yu, S. Massidda, and A. J. Freeman,Physica C 152, 273 (1988).Google Scholar
  17. 17.
    R. S. Markiewicz,J. Phys. Condens. Matter 1, 8911 (1989).Google Scholar
  18. 18.
    K. Levin, Ju H. Kim, J. P. Lu, and Qimiao Si,Physica C 175, 449 (1991).Google Scholar
  19. 19.
    R. Liu, B. W. Veal, A. P. Paulikas, J. W. Downey, P. J. Kostić, S. Fleshler, U. Welp, C. G. Olson, X. Wu, A. J. Arko, and J. J. Joyce,Phys. Rev. B 46, 11056 (1992).Google Scholar
  20. 20.
    P. B. Allen, W. E. Pickett, and H. Krakauer,Phys. Rev. B 36, 3926 (1987).Google Scholar
  21. 21.
    S. A. Trugman,Phys. Rev. Lett. 65, 500 (1990).Google Scholar
  22. 22.
    N. Nagaosa and P. Lee,Phys. Rev. Lett. 64, 2450 (1990).Google Scholar
  23. 23.
    H. Kaga and T. Saikawa,Solid State Commun. 82, 189 (1992).Google Scholar
  24. 24.
    P. W. Anderson,Phys. Rev. Lett. 67, 2092 (1991).Google Scholar
  25. 25.
    T. R. Chien, Z. Z. Wang, and N. P. Ong,Phys. Rev. Lett. 67, 2088 (1991).Google Scholar
  26. 26.
    A. Carrington, A. P. Mackenzie, C. T. Lin and J. R. Cooper,Phys. Rev. Lett. 69, 2855 (1992).Google Scholar
  27. 27.
    H. Ushio, T. Schimizu, and H. Kamimura,J. Phys. Soc. Jpn. 60, 1445 (1991).Google Scholar
  28. 28.
    G. A. Levin and K. F. Quader,Phys. Rev. B 46, 5872 (1992).Google Scholar

Copyright information

© Plenum Publishing Corporation 1994

Authors and Affiliations

  • R. Hopfengärtner
    • 1
  • M. Lippert
    • 1
  • W. Dorsch
    • 1
  • H. Dietrich
    • 1
  • G. Kreiselmeyer
    • 1
  • G. Saemann-Ischenko
    • 1
  1. 1.Physikalisches Institut Universität Erlangen-NürnbergErlangen

Personalised recommendations