High-resolution ARPES study of many-body interactions in high-Tc cuprate superconductors

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We report our recent ultrahigh-resolution angle-resolved photoemission spectroscopy (ARPES) results on several hole- and electron-doped high-Tc cuprate superconductors. We have studied the momentum and temperature dependence of the kink in the dispersion near the Fermi level and its "magnetic isotope effect" in hole-doped superconductors. The momentum dependence of pseudogap and superconducting gap has been studied for electron-doped superconductors. All the experimental results unambiguously indicate that the magnetic interaction is essential in characterizing the electronic structure and the superconductivity.

Original languageEnglish
Pages (from-to)198-201
Number of pages4
JournalPhysica C: Superconductivity and its Applications
Volume460-462 I
Issue numberSPEC. ISS.
Publication statusPublished - 2007 Sept 1


  • High-T cuprate superconductor
  • Many-body interaction


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