Quasiclassical Transport at a van Hove Singularity in Cuprate Superconductors

D. M. Newns; C. C. Tsuei; R. P. Huebener; P. J. M. van Bentum; P. C. Pattnaik; C. C. Chi

doi:10.1103/PhysRevLett.73.1695

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Quasiclassical Transport at a van Hove Singularity in Cuprate Superconductors

D. M. Newns, C. C. Tsuei, R. P. Huebener, P. J. M. van Bentum, P. C. Pattnaik, C. C. Chi

DOI 10.1103/PhysRevLett.73.1695 · Physical Review Letters

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Abstract

The thermopower in cuprate superconductors shows a quasiclassical temperature independence rather than the T-linear behavior of a Fermi liquid, and scales in an approximately universal manner with doping. It is shown that standard transport theory at a van Hove singularity in the band structure can explain both the linear resistivity and these remarkable features of the thermopower in cuprates.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	93.9	Pressure not reported	unknown