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Power Law Liquid - A Unified Form of Low-Energy Nodal Electronic Interactions in Hole Doped Cuprate Superconductors by Reber, T. J.; Zhou, X.; Plumb, N. C.; Parham, S.; Waugh, J. A.; Cao, Y.; Sun, Z.; Li, H.; Wang, Q.; Wen, J. S.; Xu, Z. J.; Gu, G.; Yoshida, Y.; Eisaki, H.; Arnold, G. B.; Dessau, D. S. is a scholarly article available to read on EtoBox.

What is Power Law Liquid - A Unified Form of Low-Energy Nodal Electronic Interactions in Hole Doped Cuprate Superconductors about?

The strange-metal phase of the cuprate high temperature superconductors, above where the superconductivity sets in as a function of temperature, is widely considered more exotic and mysterious than the superconductivity itself. Here, based upon detailed angle resolved photoemission spectroscopy measurements of Bi$_2$Sr$_2$CaCu$_2$O$_8$$_+$$_\delta$ over a wide range of doping levels, we present a new unifying phenomenology for the non-Fermi liquid normal-state interactions (scattering rates) in the nodal direction. This new phenomenology has a continuously varying power law exponent (hence named a Power Law Liquid or PLL), which with doping varies smoothly from a quadratic Fermi Liquid to a linear Marginal Fermi Liquid and beyond. Using the extracted PLL parameters we can calculate the optics and resistivity over a wide range of doping and normal-state temperature values, with the results closely matching the experimental curves. This agreement includes the presence of the $"$pseudogap$"$ temperature scale observed in the resistivity curves including the apparent quantum critical point. This breaks the direct link to the pseudogapping of antinodal spectral weight observed at simila

Author

Reber, T. J.; Zhou, X.; Plumb, N. C.; Parham, S.; Waugh, J. A.; Cao, Y.; Sun, Z.; Li, H.; Wang, Q.; Wen, J. S.; Xu, Z. J.; Gu, G.; Yoshida, Y.; Eisaki, H.; Arnold, G. B.; Dessau, D. S.

Published

2015

Language

EN