Advertisement

Journal of Superconductivity and Novel Magnetism

, Volume 28, Issue 2, pp 379–382 | Cite as

Substrate Influence on Dendritic Flux Instability in YBCO Thin Films

  • E. Baruch-ElEmail author
  • M. Baziljevich
  • T. H. Johansen
  • Y. Yeshurun
Original Paper

Abstract

We have investigated the effect of substrate thermal conductivity on dendritic flux formation in thin superconducting YBa 2Cu 3 O 7−x films grown on yttrium-stabilized zirconia, SrTiO 3, MgO, and sapphire, exploiting a recently developed ultra-fast magneto-optical imaging system and its ultra-fast field ramp (3 kT/s). Dendritic flux formation triggered solely by rapid ramping of the external field is reported for the first time in YBCO on yttrium-stabilized zirconia, the substrate with the lowest thermal conductivity. For the other substrates, the dendritic instability could be generated only after introducing an artificial defect at the edge, enhancing the local induction. We find that the upper temperature threshold for the appearance of dendrites depends on the thermal conductivity of the substrate.

Keywords

High temperature superconductors (HTS) Dendritic flux instability Thermal conductivity Ultra-fast magneto-optical (MO) imaging 

Notes

Acknowledgments

The authors thank Dr. Robert Semerad for preparing samples and helpful discussions. We acknowledge a partial financial support from the Israel Science Foundation (Grant No. 164/12) and the Norwegian Research Council.

References

  1. 1.
    Johansen, T.H., et al.: Europhys. Lett. 59, 599 (2002)CrossRefADSGoogle Scholar
  2. 2.
    Bobyl, A.V., et al.: Appl. Phys. Lett. 80, 4588 (2002)CrossRefADSGoogle Scholar
  3. 3.
    Albrecht, J., et al.: Appl. Phys. Lett. 87, 182501 (2005)CrossRefADSGoogle Scholar
  4. 4.
    Rudnev, I.A., et al.: Cryogenics 43, 663 (2003)CrossRefADSGoogle Scholar
  5. 5.
    Duran, C.A., et al.: Phys. Rev. B. 52, 75 (1995)CrossRefADSGoogle Scholar
  6. 6.
    Rudnev, I.A., et al.: Appl. Phys. Lett. 87, 042502 (2005)CrossRefADSGoogle Scholar
  7. 7.
    Leiderer, P., et al.: Phys. Rev. Lett. 71, 2646 (1993)CrossRefADSGoogle Scholar
  8. 8.
    Bujok, V., et al.: Appl. Phys. Lett. 63, 412 (1993)CrossRefADSGoogle Scholar
  9. 9.
    Bolz, U., et al.: Europhys. Lett. 64, 517 (2003)CrossRefADSGoogle Scholar
  10. 10.
    Magneto-Optical Imaging. In: Johansen, T.H., Shantsev, D.V. (eds.) NATO Science Series II, Vol. 142. Kluwer Academic, The Netherlands (2004)Google Scholar
  11. 11.
    Mints, R.G., Rakhmanov, A.L.: Rev. Mods. Phys. 53, 551 (1981)CrossRefADSGoogle Scholar
  12. 12.
    Denisov, D.V., et al.: Phys. Rev. Lett. 97, 077022 (2006)ADSGoogle Scholar
  13. 13.
    Vestgarden, J.I., et al.: Phys. Rev. B 84, 054537 (2011)CrossRefADSGoogle Scholar
  14. 14.
    Vestgarden, J.I., et al.: Supercond. Sci. Technol. 26, 055012 (2013)CrossRefADSGoogle Scholar
  15. 15.
    Baziljevich, M., et al.: Physica C 369, 93 (2002)CrossRefADSGoogle Scholar
  16. 16.
    Dvash, E.E., Shapiro, I., Shapiro, B. Ya.: Phys. Rev. B 80 (2009)Google Scholar
  17. 17.
    Johansen, T.H., et al.: Surf. Sci. 601, 5712 (2007)CrossRefADSGoogle Scholar
  18. 18.
    Baziljevich, M., et al.: Rev. Sci. Instrum. 83, 083707 (2012)CrossRefADSGoogle Scholar
  19. 19.
    Baziljevich, M., et al.: Appl. Phys. Lett. 105, 012602 (2014)CrossRefADSGoogle Scholar
  20. 20.
    Utz, B., et al.: IEEE Trans. Appl. Supercond. 7, 1272 (1997)CrossRefGoogle Scholar
  21. 21.
    Mints, R.G., Brandt, E.H.: Phys. Rev. B 54, 12421 (1996)CrossRefADSGoogle Scholar
  22. 22.
    Gurevich, A.: Appl. Phys. Lett. 78, 1891 (2001)CrossRefADSGoogle Scholar
  23. 23.
    Gurevich, A., Friesen, M.: Phys. Rev. B 62, 4004 (2000)CrossRefADSGoogle Scholar
  24. 24.
    Yang, H.S., et al.: Acta Mater. 50, 2309 (2002)CrossRefGoogle Scholar
  25. 25.
    Suemune, Y.: J. Phys. Soc. Jpn. 20, 174 (1965)CrossRefADSGoogle Scholar
  26. 26.
    Kaiser, T.: PhD Thesis, University of Wuppertal (1998)Google Scholar
  27. 27.
    Slack, G. A.: Phys. Rev. Lett. 126, 427 (1962)ADSGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • E. Baruch-El
    • 1
    Email author
  • M. Baziljevich
    • 1
    • 2
  • T. H. Johansen
    • 2
    • 3
  • Y. Yeshurun
    • 1
  1. 1.Department of Physics, Institute of Superconductivity and Institute of Nanotechnology and Advanced MaterialsBar-Ilan UniversityRamat-GanIsrael
  2. 2.Department of PhysicsUniversity of OsloOsloNorway
  3. 3.Institute for Superconducting and Electronic MaterialsUniversity of WollongongWollongongAustralia

Personalised recommendations