Coherent Quasiparticle Weight and Its Connection to High-Tc Superconductivity from Angle-Resolved Photoemission

H. Ding, J. R. Engelbrecht, Z. Wang, J. C. Campuzano, S. C. Wang, H. B. Yang, R. Rogan, T. Takahashi, K. Kadowaki, K. Kadowaki

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


We study the doping and temperature dependence of the single-particle coherent weight, z A, for high-Tc superconductors Bi2Sr2CaCu2O8+x using angle-resolved photoemission. We find that at low temperatures the coherent weightzA at (π, 0) is proportional to the carrier concentration x and that the temperature dependence of zA is similar to that of the c-axis superfluid density. We show that, for a wide range of carrier concentration, the superconducting transition temperature scales with the product of the low-temperature coherent weight and the maximum superconducting gap.

Original languageEnglish
Pages (from-to)227001-227001-4
JournalPhysical review letters
Issue number22
Publication statusPublished - 2001 Nov 26

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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