Arpes study of the superconducting gap and pseudogap in Bi2Sr2CaCu2O8+x

H. Ding, J. C. Campuzano, M. R. Norman, M. Randeria, T. Yokoya, T. Takahashi, T. Takeuchi, T. Mochiku, K. Kadowaki, P. Guptasarma, D. G. Hinks

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Abstract

In this paper, we review some of our ARPES results on the superconducting and pseudo gaps in Bi2Sr2CaCu2O8+x. We find that optimally and overdoped samples exhibit a d-wave gap, which closes at the same temperature, Tc, for all k points. In underdoped samples, a leading edge gap is found up to a temperature T* > Tc. We find that T* scales with the maximum low temperature gap, increasing as the doping is reduced. The momentum dependence of the pseudogap is similar to that of the superconducting gap; however, the pseudogap closes at different temperatures for different k points.

Original languageEnglish
Pages (from-to)1888-1891
Number of pages4
JournalJournal of Physics and Chemistry of Solids
Volume59
Issue number10-12
DOIs
Publication statusPublished - 1998 Jan 1

Keywords

  • Angle-resolved photoemission
  • High temperature superconductors
  • Pseudogap
  • Superconductivity gap

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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    Ding, H., Campuzano, J. C., Norman, M. R., Randeria, M., Yokoya, T., Takahashi, T., Takeuchi, T., Mochiku, T., Kadowaki, K., Guptasarma, P., & Hinks, D. G. (1998). Arpes study of the superconducting gap and pseudogap in Bi2Sr2CaCu2O8+x Journal of Physics and Chemistry of Solids, 59(10-12), 1888-1891. https://doi.org/10.1016/S0022-3697(98)00136-X