dx2-y2-like superconducting gap in Bi2Sr2CaCu2O6 observed by angle-resolved photoemission

T. Yokoya, T. Takahashi, T. Mochiku, K. Kadowaki

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1 Citation (Scopus)


A large anisotropy of superconducting energy gap in Bi2Sr2CaCu2O8 was directly observed by high-energy resolution angle-resolved photoemission spectroscopy with a high-quality twin-free single crystal. The superconducting gap (Δ) observed in the ΓM direction is 17-19 meV while that in the ΓX (or ΓY) direction is 0-2 meV, suggesting the dx2-y2 superconducting order parameter.

Original languageEnglish
Pages (from-to)1013-1014
Number of pages2
JournalPhysica C: Superconductivity and its applications
Issue numberPART 2
Publication statusPublished - Dec 1994
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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