Interplay among critical temperature, hole content, and pressure in the cuprate superconductors
arXiv:cond-mat/9608132 · doi:10.1103/PhysRevB.54.15471
Abstract
Within a BCS-type mean-field approach to the extended Hubbard model, a nontrivial dependence of T_c on the hole content per unit CuO_2 is recovered, in good agreement with the celebrated non-monotonic universal behaviour at normal pressure. Evaluation of T_c at higher pressures is then made possible by the introduction of an explicit dependence of the tight-binding band and of the carrier concentration on pressure P. Comparison with the known experimental data for underdoped Bi2212 allows to single out an `intrinsic' contribution to d T_c / d P from that due to the carrier concentration, and provides a remarkable estimate of the dependence of the inter-site coupling strength on the lattice scale.
arXiv commentREVTeX 8 pages, including 5 embedded PostScript figures; other required macros included; to be published in Phys. Rev. B (vol. 54)
References in corpus (6)
- Phenomenological Models for the Gap Anisotropy of Bi-2212 as Measured by ARPES
- Antiferromagnetic and van Hove Scenarios for the Cuprates: Taking the Best of Both Worlds
- Observation of a van Hove Singularity in with Angle Resolved Photoemission
- and Oxygen Stoichiometry: Structure, Resistivity, Fermi Surface Topology and Normal State Properties
- Renormalization group approach to anisotropic superconductors at finite temperature
- Many Body Correlation Corrections to Superconducting Pairing in Two Dimensions.
Cited by in corpus (9)
- Muon spin rotation investigation of the pressure effect on the magnetic penetration depth in YBa2Cu3Ox
- Nonextensive thermodynamics applied to superconductivity
- Phase diagram and dependence of the critical temperature T_c on the pressure for Tl_{0.5}Pb_{0.5}Sr_2Ca_{1-x}Y_xCu_2)_7
- Correlation between characteristic energies in non-s-wave pairing superconductors
- Crossover behavior for complex order parameter in high-Tc superconductors
- Effect of nonuniform hole-content distribution within the interlayer pair-tunneling mechanism of layered HTSC
- Quantum Monte Carlo Study of an Extended Hubbard Model on a Two-leg Ladder
- Superconductivity in an extended Hubbard model with attractive interaction
- Non-monotonic dependence of on the c axis compression in the HTSC cuprate LaSrCuO