Thermodynamic properties of Bi2Sr2CaCu2O8 calculated from the electronic dispersion

Abstract

The electronic dispersion for Bi2Sr2CaCu2O(8+d) has been determined from angle-resolved photoelectron spectroscopy (ARPES). From this dispersion we calculate the entropy and superfluid density. Even with no adjustable parameters we obtain an exceptional match with experimental data across the entire phase diagram, thus indirectly confirming both the ARPES and thermodynamic data. The van Hove singularity is crossed in the overdoped region giving a distinctive linear-in-T temperature dependence in the superfluid density there.

arXiv comment5 pages, 4 figures, submitted to Physical Review Letters

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• Phenomenological theories of the low-temperature pseudogap: Hall number, specific heat and Seebeck coefficient
• The pseudogap ground state in high temperature superconductors
• Electron pockets and pseudogap asymmetry observed in the thermopower of underdoped cuprates
• Simultaneous drop in mean free path and carrier density at the pseudogap onset in high-$T_c$ cuprates
• Estimation of Cooper pair density and its relation to the critical current density in hole doped high-Tc cuprate superconductors
• Effects of the pseudo-gap on the field-induced kinetic energy density of Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ single crystals