Thermodynamic properties of Bi2Sr2CaCu2O8 calculated from the electronic dispersion

Details Thermodynamic properties of Bi2Sr2CaCu2O8 calculated from the electronic dispersion Thermodynamic properties of Bi2Sr2CaCu2O8 calculated from the electronic dispersion

2007-04-18

arxiv.org/abs/0704.2432v1

Physics

Condensed Matter

Superconductivity

5 pages, 4 figures, submitted to Physical Review Letters

Scientific paper

10.1103/PhysRevB.77.052504

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.

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