Abstract
We study the doping and temperature dependence of the single-particle coherent weight, , for high- superconductors using angle-resolved photoemission. We find that at low temperatures the coherent weight at is proportional to the carrier concentration and that the temperature dependence of is similar to that of the -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.
- Received 13 October 2000
DOI:https://doi.org/10.1103/PhysRevLett.87.227001
©2001 American Physical Society