Skip to main content
SpringerLink
Log in

Quantum tunneling of vortices in single crystal Tl2CaBa2Cu2O8 superconductors

  • Articles
  • Published:
Journal of Low Temperature Physics Aims and scope Submit manuscript

Abstract

Data are presented on the temperature-dependent time-logarithmic magnetic relaxation rate S(T) = ¦dM/din t¦ of the high-Tc superconductor Tl2CaBa2 Cu2O8. It is found that at low temperatures the relaxation rate has the form S(T) = A(H) exp[(T/T*)2], which does not extrapolate to zero at T = 0, thus excluding conventional thermally activated flux creep and providing evidence of quantum vortex tunneling. From a quantum flux tunneling theory, it is shown that S(T) ∝ I/ηer 2p . The measurements of the relaxation rate thus provide information about the effective viscosity ηe of fluxons.

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. P. W. Anderson and Y. B. Kim,Rev. Mod. Phys. 36, 39 (1964); M. R. Beasley, R. Labusch, and W. W. Webb,Phys. Rev. 181, 682 (1969).

    Google Scholar 

  2. A. C. Mota, G. Juri, P. Visani, A. Pollini, T. Teruzzi, K. Aupke, and B. Hilti,Physica C 185–189, 343 (1991).

    Google Scholar 

  3. L. Fruchter, A. P. Malozemoff, I. A. Campbell, J. Sanchez, M. Konczykowski, R. Griessen, and F. Holtzberg,Phys. Rev. B 43, 8709 (1991).

    Google Scholar 

  4. A. V. Mitin,Zh. Eksp. Teor. Fiz. 93, 590 (1987) [Sov.Phys. JETP 66, 335 (1987)].

    Google Scholar 

  5. R. Griessen, J. G. Lensink and H. G. Schnack,Physica C 185–189, 337 (1991).

    Google Scholar 

  6. L. I. Glazman and N. Ya. Fogel,Fiz. Nizk. Temp. 10, 95 (1984) [Sov. J. Low Temp. Phys. 10, 51 (1984)].

    Google Scholar 

  7. G. Blatter, V. B. Geshkenbein, and V. M. Vinokur,Phys. Rev. Lett. 66, 3297 (1991); G. Blatter and V. B. Geshkenbein,Phys. Rev. 47, 2725 (1993).

    Google Scholar 

  8. Ping Ao and David J. Thouless,Phys. Rev. Lett. 72, 132 (1994).

    Google Scholar 

  9. Michael Stephen,Phys. Rev. Lett. 72, 1534 (1994).

    Google Scholar 

  10. A. O. Caldeira and A. J. Leggett,Ann. Phys. (N.Y.) 149, 374 (1983);153, 445 (1984).

    Google Scholar 

  11. A. I. Larkin and Yu. N. Ovchinnikov,Zh. Eksp. Teor. Fiz. 86, 719 (1984) [Sov. Phys. JETP 59, 420 (1984)]; H. Graben, U. Weiss, and P. Hanggi,Phys. Rev. Lett. 52, 2193 (1984).

    Google Scholar 

  12. Y. Yeshurun, A. P. Malozemoff, F. Holtzberg, and T. R. Dinger,Phys. Rev. B 38, 11828 (1988); P. Chaddah and K. V. Bhagwat,Phys. Rev. B 43, 6239 (1991).

    Google Scholar 

  13. S. Doniach, inHigh Temperature Superconductivity Proceedings, Edited by K. S. Bedellet al. (Addison-Wesley, New York, 1990).

    Google Scholar 

  14. J. Bardeen and M. J. Stephen,Phys. Rev. 140, A1197 (1965).

    Google Scholar 

  15. F. Zuo, M. B. Salamon, T. Datta, K. Ghiron, H. Duan, and A. H. Hermann,Physica C 176, 541 (1991).

    Google Scholar 

  16. C. W., Hagen and R. Griessen,Phys. Rev. Lett. 62, 2857 (1989).

    Google Scholar 

  17. E. H. Brandt,Phys. Rev. Lett. 57, 1347 (1986).

    Google Scholar 

  18. K. E. Gray, R. T. Kampwirth, and D. E. Farrell,Phys. Rev. B 14, 819 (1990); D. E. Farrell, R. G. Beck, M. F. Booth, C. J. Allen, E. D. Bukowski, and D. M. Ginsberg,Phys. Rev. B 42, 6758 (1990).

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Physics Department, University of Miami, 33124, Coral Gables, Fl

    F. Zuo

  2. Institute for Materials Research, McMaster University, L8S 4M1, Hamilton, Ont., Canada

    A. C. Shi & A. J. Berlinsky

  3. Department of Physics, University of Colorado, 80309, Boulder, CO

    H. M. Duan & A. M. Hermann

Authors
  1. F. Zuo
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. A. C. Shi
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. A. J. Berlinsky
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. H. M. Duan
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. A. M. Hermann
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Zuo, F., Shi, A.C., Berlinsky, A.J. et al. Quantum tunneling of vortices in single crystal Tl2CaBa2Cu2O8 superconductors. J Low Temp Phys 97, 393–401 (1994). https://doi.org/10.1007/BF00754300

Download citation

  • Received:

  • Revised:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00754300

Keywords

Search

Navigation