Publication Type
Journal
Journal Name
Physical Review B
Publication Date
Page Number
035132
Volume
78
Issue
3
Abstract
Using a combined local density functional theory (DFT-LDA) and quantum Monte Carlo (QMC)
dynamic cluster approximation approach, the parameter dependence of the superconducting tran-
sition temperature Tc of five single-layer hole-doped cuprate superconductors with experimentally
very different Tc max is investigated. The parameters of a 3-band Hubbard model are obtained using
the LDA and the downfolding N th-order muffin-tin orbital technique. QMC calculations on 4-site
clusters show that the d-wave transition temperature Tc depends strongly on the parameters. No
transition is found for the LDA-based parameters, but modest changes restore the transition.
