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Photoemission Study of the Electronic Structure of Copper Oxide Superconductors

Published online by Cambridge University Press:  28 February 2011

Z.-X. Shen ,
J. W. Allen ,
J. J. Yeh ,
J.-S. Kang ,
W. Ellis ,
W. E. Spicer ,
I. Lindau ,
J. Z. Sun ,
T. H. Geballe  and
M. B. Maple
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Z.-X. Shen
Affiliation:
Stanford Electronics Laboratories, Stanford University, Stanford, CA 94305
J. W. Allen
Affiliation:
Department of Physics, University of Michigan, Ann Arbor, MI 48109–1120
J. J. Yeh
Affiliation:
Stanford Electronics Laboratories, Stanford University, Stanford, CA 94305
J.-S. Kang
Affiliation:
Department of Physics, University of Michigan, Ann Arbor, MI 48109–1120 Department of Physics and Institute for Pure and Applied Physical Sciences, University of California at San Diego, La Jolla, CA 92093
W. Ellis
Affiliation:
Los Alamos National Laboratory, Los Alamos, NM 87545
W. E. Spicer
Affiliation:
Stanford Electronics Laboratories, Stanford University, Stanford, CA 94305
I. Lindau
Affiliation:
Stanford Electronics Laboratories, Stanford University, Stanford, CA 94305
J. Z. Sun
Affiliation:
Department of Applied Physics, Stanford University, Stanford, CA 94305
T. H. Geballe
Affiliation:
Department of Applied Physics, Stanford University, Stanford, CA 94305
M. B. Maple
Affiliation:
Department of Physics and Institute for Pure and Applied Physical Sciences, University of California at San Diego, La Jolla, CA 92093
Y. D. Dalichaouch
Affiliation:
Department of Physics and Institute for Pure and Applied Physical Sciences, University of California at San Diego, La Jolla, CA 92093
M. S. Torikachvei
Affiliation:
Department of Physics and Institute for Pure and Applied Physical Sciences, University of California at San Diego, La Jolla, CA 92093
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Abstract

We report the photoemission spectra from a high quality thin film sample of Y1Ba2Cu3C7-δ at room temperature and bulk samples of Y1Ba2Cu3C7-δ at different temperatures. The experimental data are interpreted within the configuration interaction model of Anderson Hamiltonian. The experimental values for Δ, U and T are determined. We also give the reasons why we think PES data reflect the intrinsic property of the superconductors. Furthermore, we emphasize the importance of the presence of a 3d8-like satellite which signals the strong correlation among 3d electrons.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 99: Symposium AA – High-Temperature Superconductors , 1987 , 349
Copyright
Copyright © Materials Research Society 1988

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References

REFERENCES

1. Shen, Z.-X., Alien, J. W., Yeh, J. J., Kang, J. S., Ellis, W., Spicer, W. E., Lindau, I., Maple, M. B., Dalichaouch, Y. D., Torikachvili, M. S., Sun, J. Z., and Geballe, T. H., to be published in Phys. Rev. B.Google Scholar
2. Yarnoff, J. A., Clarke, D. R., Drube, W., Karlsson, U. O., Taleb-Ibrahm, A., and Himpsel, F. J., Phys. Rev. B36, 3967 (1987).Google Scholar
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