Measurement of Superconducting Transition Temperatures of Thin Films of YBa2Cu3O7 by Four-Terminal Resistance and Magnetic Susceptibility

  • J. R. Matey


The superconducting transition temperature, Tc, is one of the most important parameters which we use to characterize superconducting materials. Tc, can be determined by
  1. 1.

    Measuring the resistance of the sample, to detect the zero resistivity of the superconducting state.

  2. 2.

    Measuring the magnetic susceptibility of the sample, to detect the perfect diamagnetism of the superconducting state.

  3. 3.

    Measuring the heat capacity of the sample, to detect the second order transition.



High Temperature Superconductor Superconducting State Mutual Inductance Superconducting Transition Temperature Resistance Transition 
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  1. 1.
    R. J. Soulen, Jr. and J. H. Colwell, The Equivalence of the Superconducting Trasition Temperature of Pure Indium as Determined by Electrical Resistance, Magnetic Susceptibility, and Heat Capacity Measurements, J. Low Temp. Phys. 5: 325 (1971).ADSCrossRefGoogle Scholar
  2. 2.
    J. F. Schooley, R. J. Soulen, Jr., and G. A. Evans, Jr., Preparation and Use of Superconductive Fixed Point Devices, SRM 767, NBS Special Publication 260–44, National Bureau of Standards, Washington, DC (1972).Google Scholar
  3. 3.
    We use the Bruggeman symmetric effective medium approximation as discussed in R. Landauer, Electrical Conductivity in Inhomogeneous Media, in: “Electrical Transport and Optical Properties of Inhomogeneous Media,” J. C. Garland and D. B. Tanner, Ed., AIP Conference Proceedings No. 40, American Institute of Physics, New York (1978).Google Scholar
  4. 4.
    J. I. Gittleman and J. R. Matey, Modeling the Microwave Properties of the YBa2Cu3O7 Superconductors, J. Appl. Phys. to be published January 1989.Google Scholar
  5. 5.
    J. Zhao, K Dahmen, H. O. Marcy, L. M. Tonge, T. J. Marks, B. W. Wessels, and C. R. Kannewurf, Organometallic Chemical Vapor Depostiion of High Tc Superconducting Films using a Volatile Fluorocarbon based Precursor, Appl. Phys. Lett. 53: 1750 (1988).ADSCrossRefGoogle Scholar
  6. 6.
    A. J. Panson, R. G. Charles, D. N. Schmidt, J. R. Szedon, G. J. Machiko and A. I. Braginski, Chemical Vapor Deposition of YBa2Cu3O7 Using Metalorganic Chelate Precursors, Appl. Phys. Lett. 53: 1756 (1988).ADSCrossRefGoogle Scholar
  7. 7.
    R. D. Lorentz and J. H. Sexton, Oriented High Temperature Superconducting BiSrCaCuO Thin Films Prepared by Ion Beam Deposition, Appl. Phys. Lett. 53: 1654 (1988).ADSCrossRefGoogle Scholar
  8. 8.
    Lake Shore Cryotronics, Westerville, Ohio 43081. Model 805 controller and DT-470 diode temperature sensor.Google Scholar
  9. 9.
    Solid nitrogen has a substantial vapor pressure well below its freezing point, 63.1 K Another important consideration is that solid nitrogen is more dense than the liquid, so that it will not rupture the cryostat as it freezes.Google Scholar
  10. 10.
    Hewlett-Packard, Palo Alto, CA. Model 4192.Google Scholar
  11. 11.
    An IBM PC/XT running DOS 3.3. Programs written in Borland TurboPascal 4.0.Google Scholar
  12. 12.
    ICS Electronics Corp, San Jose, CA 95112. Mode14874.Google Scholar
  13. 13.
    B. W. Roberts, Properties of Selected Superconductive Materials, NBS Technical Note 724, National Bureau of Standards, Washington, DC. (1972), page 10.Google Scholar
  14. 14.
    Y. Arie and J. R. Matey, Reactive Sputtering of Superconducting Thin Films, at: AVS Topical Conference on Thin Film Processing and Characterization of High Temperature Superconductors, October 1988. Proceedings to be published in the AVS series of the American Institute of Physics Conference Proceedings, February, 1989.Google Scholar
  15. 15.
    Except at a weak link, as discussed below.Google Scholar
  16. 16.
    Landauer, loc. cit.Google Scholar
  17. 17.
    P. H. Hor, R. L. Meng, J. Z. Huang, C. W. Chu, and C. Y. Huang, Upper Critical Field of High Temperature Y1.2Ba0.8CuO4-δ Superconductor, App. Phys. Comm. 7: 129 (1987).Google Scholar
  18. 18.
    J. R. Clem, Granular and Superconducting Glass Properties of the High Temperature Superconductors, Proceedings of the International Conference on High Temperature Superconductors and Materials and Mechanisms of Superconductivity, ed. J. Muller and J. L. Olsen, North Holland, Amsterdam (1988).Google Scholar

Copyright information

© Plenum Press, New York 1989

Authors and Affiliations

  • J. R. Matey
    • 1
  1. 1.David Sarnoff Research CenterCN 5300PrincetonUSA

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