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Photoemission Studies of the High Tc Superconductor YBa2Cu3O9−δ

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Novel Superconductivity

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Abstract

VUV photoemission spectra (Fig. 1) of the valence bands of the high-Tc superconductor(1) YBa2Cu3O9−δ δ=2.1, have been measured using the UV undulator (beam line U5U). Photon erergies h v = 45.0 eV and 52.0 eV lie within the first harmonic flux output from the undulator, while h v = 105.0 lies within the second harmonic. The spectra at h v = 21.2 eV and 40.8 were taken using a He resonance lamp.

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References

  1. I. Wu, J. R. Ashburn, C. J. Torng, P. H. Hoz, R. L. Ming, L. Gab, A. J. Huang, Y. Q. Wang and C. W. Chu, Phys. Rev. Lett., 58 908 (1987).

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  3. See “The Theory of the Inhomogeneous Electron Gas ”, edited by S. Lundquist and N. H. March, Plenum, New York, 1983, p. 291.

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Author information

Authors and Affiliations

  1. Physics Department, Brookhaven National Laboratory, USA

    P. D. Johnson, S. L. Qiu, L. Jiang, M. W. Ruckman & M. Strongin

  2. National Synchrotron Light Source, Brookhaven National Laboratory, USA

    S. L. Hulbert & F. R. Garrett

  3. AT&T Bell Laboratories, USA

    B. Sinkovic, N. V. Smith & R. J. Cava

  4. Temple University, USA

    C. S. Jee, D. Nichols, E. Kaczanowicz, R. E. Salomon & J. E. Crow

Authors
  1. P. D. Johnson
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  2. S. L. Qiu
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  3. L. Jiang
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  4. M. W. Ruckman
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  5. M. Strongin
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  6. S. L. Hulbert
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  7. F. R. Garrett
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  8. B. Sinkovic
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  9. N. V. Smith
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  10. R. J. Cava
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  11. C. S. Jee
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  12. D. Nichols
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  13. E. Kaczanowicz
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  14. R. E. Salomon
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  15. J. E. Crow
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Editor information

Editors and Affiliations

  1. Naval Research Laboratory, Washington, D.C., USA

    Stuart A. Wolf

  2. Lawrence Berkeley Laboratory, University of California, Berkeley, Berkeley, California, USA

    Vladimir Z. Kresin

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© 1987 Plenum Press, New York

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Johnson, P.D. et al. (1987). Photoemission Studies of the High Tc Superconductor YBa2Cu3O9−δ. In: Wolf, S.A., Kresin, V.Z. (eds) Novel Superconductivity. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-1937-5_90

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  • DOI: https://doi.org/10.1007/978-1-4613-1937-5_90

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4612-9076-6

  • Online ISBN: 978-1-4613-1937-5

  • eBook Packages: Springer Book Archive

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