Thermoelectric power of high-Tc superconductors calculated from the electronic structure

J. G. Storey; J. L. Tallon; G. V. M. Williams

Thermoelectric power of high-Tc superconductors calculated from the electronic structure

Superconductivity 2009-03-18 v1

Authors: J. G. Storey , J. L. Tallon , G. V. M. Williams

Abstract

We have calculated the thermopower of the Bi2Sr2CuO6 and Bi2Sr2CaCu2O8 superconductors using an ARPES-derived dispersion, with a model pseudogap, and a marginal-Fermi liquid scattering rate that has a minimum with respect to energy at the van Hove singularity (vHs). Good fits with data are achieved across the entire phase diagram, thus confirming the dispersions, the locations of the vHs and the dominance of the diffusion thermopower over the phonon drag contribution.

Keywords

high-Tc superconductors thermoelectric power ARPES pseudogap marginal Fermi liquid van Hove singularity

Cite

@article{arxiv.0903.2886,
  title  = {Thermoelectric power of high-Tc superconductors calculated from the electronic structure},
  author = {J. G. Storey and J. L. Tallon and G. V. M. Williams},
  journal= {arXiv preprint arXiv:0903.2886},
  year   = {2009}
}

Comments

5 pages, 7 figures, submitted to Physical Review B as a Rapid Communication

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