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Local Atomic Displacements in High Tc Oxides Studied by Pulsed Neutron Scattering

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Oxygen Disorder Effects in High-T Superconductors

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Abstract

Various deviations from perfect periodicity in the atomic structure are found in real superconducting oxides, due to extrinsic defects such as oxygen vacancies, site occupation disorder, or twins. However, there are strong indications that these oxides also contain significant intrinsic disorder which may play a role in the superconductivity. A common indication of such disorder is a large “temperature factor”, or the Debye-Waller factor, in the atomic structure which is often hardly dependent on temperature. Such a large temperature factor often results not only from the amplitudes of thermal vibration, but also from some static or quasi-static atomic displacements which have not been properly included in the structural analysis.

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Author notes

  1. W. Dmowski

    Present address: Institute of Materials Science and Engineering, Technical University of Warsaw, Warsaw, Poland

Authors and Affiliations

  1. Department of Materials Science and Engineering and Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, PA, 19104-6272, USA

    T. Egami, B. H. Toby & W. Dmowski

  2. Materials Science Division, Argonne National Laboratory, Argonne, IL, 60439, USA

    J. D. Jorgensen & D. G. Hinks

  3. Central Research and Development, E. I. du Pont de Nemours and Co., Wilmington, DE, 19898, USA

    M. A. Subramanian, J. Gopalakrishnan, A. W. Sleight & J. B. Parise

Authors
  1. T. Egami
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  2. B. H. Toby
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  3. W. Dmowski
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  4. J. D. Jorgensen
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  5. D. G. Hinks
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  6. M. A. Subramanian
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  7. J. Gopalakrishnan
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  8. A. W. Sleight
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  9. J. B. Parise
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Editor information

Editors and Affiliations

  1. Universidad Autónoma de San Luis Potosí, San Luis Potosí, San Luis Potosí, Mexico

    J. L. Morán-López

  2. University of California, San Diego, La Jolla, California, USA

    Ivan K. Schuller

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© 1990 Plenum Press, New York

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Egami, T. et al. (1990). Local Atomic Displacements in High Tc Oxides Studied by Pulsed Neutron Scattering. In: Morán-López, J.L., Schuller, I.K. (eds) Oxygen Disorder Effects in High-T c Superconductors. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-0561-3_3

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  • DOI: https://doi.org/10.1007/978-1-4613-0561-3_3

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4612-7867-2

  • Online ISBN: 978-1-4613-0561-3

  • eBook Packages: Springer Book Archive

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