BCS-like Bogoliubov quasiparticles in high-Tc superconductors observed by angle-resolved photoemission spectroscopy

H. Matsui, T. Sato, T. Takahashi, S. C. Wang, H. B. Yang, H. Ding, T. Fujii, T. Watanabe, A. Matsuda

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Abstract

A study on Bardeen, Cooper, Schrieffer (BCS)-like Bogoliubov quasiparticles in high-Tc superconductors observed by angle-resolved photoemission spectroscopy was presented. The full energy dispersion of Bogoliubov quasiparticles were observed with determining the coherence factors above and below EF as a function of momentum from the spectral intensity as well as from the energy dispersion based on BCS theory. A good agreement between the experimental and the theoretical prediction suggested the basic validity of BCS formalism in describing the superconducting state of cuprates.

Original languageEnglish
Article number217002
Pages (from-to)2170021-2170024
Number of pages4
JournalPhysical Review Letters
Volume90
Issue number21
Publication statusPublished - 2003 May 30

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Matsui, H., Sato, T., Takahashi, T., Wang, S. C., Yang, H. B., Ding, H., Fujii, T., Watanabe, T., & Matsuda, A. (2003). BCS-like Bogoliubov quasiparticles in high-Tc superconductors observed by angle-resolved photoemission spectroscopy. Physical Review Letters, 90(21), 2170021-2170024. [217002].