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Studies of Microstructures in High-Tc Superconductors by X-ray Absorption Techniques

  • A. Krol
  • C. J. Sher
  • Z. H. Ming
  • C. S. Lin
  • L. W. Song
  • Y. H. Kao
  • G. C. Smith
  • Y. Z. Zhu
  • D. T. Shaw

Abstract

Fluorescence emission and total-electron-yield vs. grazing angle of incidence at fixed energy of incoming soft x-ray radiation, around O is absorption edge, for YBa2Cu3O7−δ and Bi2Sr2 CaCu2O8+x thin films on MgO and ZrO2substrates were investigated. Surface rms roughness and oxygen depth distribution were estimated. We have found that in these materials the information depth of microstructures derived from fluorescence yield and total-electron-yield is around 2500 Å and 100 Å, respectively.

Keywords

Fluorescence Yield Primary Electron Grazing Angle Attenuation Length Thin Film Microstructure 
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.

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References

  1. 1.
    A. Krol, C.J. Sher, and Y.H. Kao, Phys. Rev. B39:8579 (1988).Google Scholar
  2. 2.
    H. Sugiyama, Jap. Bull. Electr. Lab. 38:351 (1974).Google Scholar
  3. 3.
    B.K. Agrawal “X-Ray Spectroscopy” ed., Springer-Verlag, New York (1979).Google Scholar
  4. 4.
    G.C. Smith, A. Krol, and Y.H. Kao, to be published in Nucl. Instr. Meth.Google Scholar
  5. 5.
    M.P. Seah and W.A. Dench, Surface and Interface Analysis 1:2 (1979).CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • A. Krol
    • 1
  • C. J. Sher
    • 1
  • Z. H. Ming
    • 1
  • C. S. Lin
    • 1
  • L. W. Song
    • 1
  • Y. H. Kao
    • 1
  • G. C. Smith
    • 2
  • Y. Z. Zhu
    • 3
  • D. T. Shaw
    • 3
  1. 1.Department of Physics and Astronomy and New York State Institute on SuperconductivityState University of New York at BuffaloBuffaloUSA
  2. 2.Instrumentation DivisionBrookhaven National LaboratoryUptonUSA
  3. 3.New York State Institute on SuperconductivityState University of New York at BuffaloBuffaloUSA

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