Advertisement

Millimeter Wave Transmission Studies of YBa2Cu3O7−δ Thin Films in the 26.5 to 40.0 GHz Frequency Range

  • F. A. Miranda
  • W. L. Gordon
  • K. B. Bhasin
  • V. O. Heinen
  • J. D. Warner
  • G. J. Valco

Abstract

Millimeter wave transmission measurements through YBa2Cu3O7−δ thin films on MgO, ZrO2 and LaA1O3 substrates, are reported. The films (0.2 to 1.0 μm) were deposited by sequential evaporation and laser ablation techniques. Transition temperatures Tc, ranging from 89.7 K for the laser ablated film on LaA1O3 to approximately 72 K for the sequentially evaporated film on MgO, were obtained. The values of the real and imaginary parts of the complex conductivity, σ1 and σ2, are obtained from the power transmitted through the film, assuming a two fluid model. The magnetic penetration depth is evaluated from the values of σ2. These results will be discussed together with the frequency dependence of the normalized transmission amplitude, P/Pc, below and above Tc.

Keywords

Laser Ablation Fluid Model Microwave Absorption Versus Temperature Complex Conductivity 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Hartwig, W.; and Passow, C.: RF Superconducting Devices -- Theory, Design, Performance, and Applications. Applied Superconductivity, vol. 2, V.L. Newhouse, ed., Academic Press, New York, 1975, pp. 541–639.Google Scholar
  2. 2.
    Martens, J.S.; Beyer, J.B.; and Ginley, D.S.: Microwave Surface Resistance of YBa2Cu3O3,9 Superconducting Films. Appl. Phys. Lett., vol. 52, no. 21, 23 May 1988, pp. 1822–1824.ADSCrossRefGoogle Scholar
  3. 3.
    Carini, J.P., et al.: Millimeter-Wave Surface Resistance Measurements in Highly Oriented YBa2Cu3O7-δ Thin Films. Phys. Rev. B, vol. 37, no. 16, 1 June 1988, pp. 9726–9729.Google Scholar
  4. 4.
    Newman, H.S., et al.: Microwave Surface Resistance of Bulk Tl-Ba-Ca-Cu-O Superconductors. Appl. Phys. Lett., vol. 54, no. 4, 23 Jan. 1989, pp. 389–390.ADSCrossRefGoogle Scholar
  5. 5.
    Klein, N., et al.: Millimeter-Wave Surface Resistance of Epitaxially Grown YBa2Cu3O6-x Thin Films. Appl. Phys. Lett., vol. 54, no. 8, 20 Feb. 1989, pp. 757–759.ADSCrossRefGoogle Scholar
  6. 6.
    Sridhar, S.; Shiffman, C.A.; and Handed, H.: Electrodynamic Response of YlBa2Cu3Oy and La1.85Sr0.15CuOu-s in the Superconducting State. Phys. Rev. B, vol. 36, no. 4, 1 Aug. 1987, pp. 2301–2304.Google Scholar
  7. 7.
    Cohen, L., et al.: Surface Impedance Measurements of Superconducting YBa2Cu3O6+x. J. Phys. F: Met. Phys., vol. 17, 1987,, pp. L179–L183.Google Scholar
  8. 8.
    Ho, W., et al.: Millimeter-Wave Complex-Conductivity Measurements of Bi-Ca-Sr-Cu-O Superconducting Thin Films. Phys. Rev. B, vol. 38, no. 10, 1 Oct. 1988, pp. 7029–7032.ADSGoogle Scholar
  9. 9.
    Nichols, C.S., et al.: Microwave Transmission Through Films of YBa2Cu3O7.4. To be published in Phys. Rev. B.Google Scholar
  10. 10.
    Tyagi, S., et al.: Low-Field AC Susceptibility and Microwave Absorption in YBaCuO and BiCaSrCuO Superconductors. Physica C, vol. 156, 1988, pp. 73–78.ADSCrossRefGoogle Scholar
  11. 11.
    Maxwell, E.; Marcus, P.M.; and Slater, J.C.: Surface Impedance of Normal and Superconductors at 24,000 Megacycles per Second. Phys. Rev. vol. 76, no. 9, 1 Nov. 1949, pp. 1332–1347.CrossRefGoogle Scholar
  12. 12.
    Pippard, A.B.: The Surface Impedance of Superconductors and Normal Metals at High Frequencies. Proc. R. Soc. A, vol. 203, no. 1072, 7 Sept. 1950, pp. 98–118.ADSCrossRefGoogle Scholar
  13. 13.
    Gittleman, J.I.; and Bozowski, S.: Transition of Type-I Superconducting Thin Films in a Perpendicular Magnetic Field: A Microwave Study. Phys. Rev., vol$1161, no. 2, 10 Sept., 1967, pp. 398–403.Google Scholar
  14. 14.
    Durny, R., et al.: Microwave Absorption in the Superconducting and Normal Phases of Y-Ba-Cu-O. Phys. Rev. B, vol. 36, no. 4, 1 Aug. 1987, pp. 2361–2363.ADSCrossRefGoogle Scholar
  15. 15.
    Tyagi, S., et al.: Frequency Dependence of Magnetic Hysteresis in the Field-Induced Microwave Absorption in High-Tc Superconductors at T Tc. To be published in Phys. Lett. A.Google Scholar
  16. 16.
    Jackson, E.M., et al.: Study of Microwave Power Absorption in Yttrium-Barium-Copper Based High Temperature Superconductors and Allied Compounds. To be published in Supercond. Sci. Technol.Google Scholar
  17. 17.
    Gittleman, J.I.; and Rosemblum, B.: Microwave Properties of Superconductors. IEEE Proc., vol. 52, no. 10, Oct. 1964, pp. 1138–1147.CrossRefGoogle Scholar
  18. 18.
    Glover III, R.E.; and Tinkham, M.: Conductivity of Superconducting Films for Photon Energies Between 0.3 and 40 KTc. Phys. Rev., vol. 108, no. 2, 15 Oct. 1957, pp. 243–256.ADSCrossRefGoogle Scholar
  19. 19.
    J.D. Warner, J.E. Meola and K.A. Jenkins:“Study of Deposition of YBa2Cu3O7-x on Cubic Zirconia,” NASA TM-102350 (1989).Google Scholar
  20. 20.
    G.J. Valco, N.J. Rohrer, J.D. Warner and K.B. Bhasin:“Sequentially Evaporated Thin Y-Ba-Cu-O Superconducting Films on Microwave Substrates” NASA TM-102068 (1989).Google Scholar
  21. 21.
    Miranda, F.A., et al.: Measurements of Complex Permittivity of Microwave Substrates in the 20 to 300 K Temperature Range From 26.5 to 40.0 GHz. NASA TM-102123, 1989.Google Scholar
  22. 22.
    Gurvitch, M.; and Fiory, A.T.: Resistivity of La1.825Sr0.175Cu04 and YBa2Cu3O7 to 1100K: Absence of Saturation and Its Implications. Phys. Rev. Lett., vol. 59, no. 12, 21 Sept. 1987, pp. 1337–1340.CrossRefGoogle Scholar
  23. 23.
    Collins, R.T., et al.: Comparative Study of Superconducting Energy Gaps in Oriented Films and Polycrystalline Bulk Samples of Y-Ba-Cu-O. Phys. Rev. Lett., vol. 59, no. 6, 10 Aug. 1987, pp. 704–707.CrossRefGoogle Scholar
  24. 24.
    Kobrin, P.H., et al.: Millimeter-Wave Complex Conductivities of Some T1BaCaCuO and YBa2Cu3O7-f Films, Presented at the M2s-HTSC Conference, Stanford, CA, July 24–28, 1989. To be published in Physica C.Google Scholar

Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • F. A. Miranda
    • 1
  • W. L. Gordon
    • 1
  • K. B. Bhasin
    • 2
  • V. O. Heinen
    • 2
  • J. D. Warner
    • 2
  • G. J. Valco
    • 3
  1. 1.Department of PhysicsCase Western Reserve UniversityClevelandUSA
  2. 2.National Aeronautics and Space AdministrationLewis Research CenterClevelandUSA
  3. 3.Department of Electrical EngineeringThe Ohio State UniversityColumbusUSA

Personalised recommendations