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Unusual oxygen isotope effects in cuprates?

Author

Listed:
  • John F. Douglas

    (University of Colorado)

  • Hideaki Iwasawa

    (Tokyo University of Science
    National Institute of Advanced Industrial Science and Technology)

  • Zhe Sun

    (University of Colorado)

  • Alexei V. Fedorov

    (Advanced Light Source, Lawrence Berkeley Lab)

  • Motoyuki Ishikado

    (University of Tokyo)

  • Tomohiko Saitoh

    (Tokyo University of Science)

  • Hiroshi Eisaki

    (National Institute of Advanced Industrial Science and Technology)

  • Hiroshi Bando

    (National Institute of Advanced Industrial Science and Technology)

  • Takeshi Iwase

    (National Institute of Advanced Industrial Science and Technology)

  • Akihiro Ino

    (Graduate School of Science, Hiroshima University)

  • Masashi Arita

    (Hiroshima Synchrotron Radiation Center, Hiroshima University)

  • Kenya Shimada

    (Hiroshima Synchrotron Radiation Center, Hiroshima University)

  • Hirofumi Namatame

    (Hiroshima Synchrotron Radiation Center, Hiroshima University)

  • Masaki Taniguchi

    (Graduate School of Science, Hiroshima University
    Hiroshima Synchrotron Radiation Center, Hiroshima University)

  • Takahiko Masui

    (Osaka University, 1-1 Machikaneyama)

  • Setsuko Tajima

    (Osaka University, 1-1 Machikaneyama)

  • Kazuhiro Fujita

    (University of Tokyo)

  • Shin-ichi Uchida

    (University of Tokyo)

  • Yoshihiro Aiura

    (National Institute of Advanced Industrial Science and Technology)

  • Daniel S. Dessau

    (University of Colorado)

Abstract

Arising from: G.-H. Gweon et al. Nature 430, 187–190 (2004) The possibility that a pairing boson might act as the 'glue' to bind electrons into a Cooper pair in superconductors with a high critical temperature (Tc) is being actively pursued in condensed-matter physics. Gweon et al.1 claim that there is a large and unusual oxygen-isotope effect on the electronic structure, indicating that phonons have a special importance in high-temperature superconductors. However, we are unable to detect this unusual oxygen-isotope effect in new data collected under almost identical material and experimental conditions. Our findings point towards a more conventional influence of phonons in these materials.

Suggested Citation

  • John F. Douglas & Hideaki Iwasawa & Zhe Sun & Alexei V. Fedorov & Motoyuki Ishikado & Tomohiko Saitoh & Hiroshi Eisaki & Hiroshi Bando & Takeshi Iwase & Akihiro Ino & Masashi Arita & Kenya Shimada & H, 2007. "Unusual oxygen isotope effects in cuprates?," Nature, Nature, vol. 446(7133), pages 5-5, March.
    • Handle: RePEc:nat:nature:v:446:y:2007:i:7133:d:10.1038_nature05738
    DOI: 10.1038/nature05738
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