Extremely Correlated Fermi Liquid Description of Normal State ARPES in Cuprates

Abstract

The normal state single particle spectral function of the high temperature superconducting cuprates, measured by the angle resolved photoelectron spectroscopy (ARPES), has been considered both anomalous and crucial to understand. Here we show that an unprecedentedly detailed description of the data is provided by a spectral function arising from the Extremely Correlated Fermi Liquid state of the t-J model proposed recently by Shastry. The description encompasses both laser and conventional synchrotron ARPES data on optimally doped Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$, and also conventional synchrotron ARPES data on the La${}_{1.85}$Sr${}_{0.15}$CuO${}_4$ materials. {\em It fits all data sets with the same physical parameter values}, satisfies the particle sum rule and successfully addresses two widely discussed "kink" anomalies in the dispersion.

Published version, 5 figs; published 29 July (2011)

References in corpus (8)

• A universal high energy anomaly in angle resolved photoemission spectra of high temperature superconductors - possible evidence of spinon and holon branches
• Kinks in the dispersion of strongly correlated electrons
• Laser ARPES, the sudden approximation, and quasiparticle-like peaks in Bi2Sr2CaCu2O8+delta
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• The hierarchy of multiple many-body interaction scales in high-temperature superconductors
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• Extremely Correlated Fermi Liquids
• Generalized Spectral Signatures of Electron Fractionalization in Quasi-One and -Two Dimensional Molybdenum Bronzes and Superconducting Cuprates

Cited by in corpus (1)

• Extremely Correlated Fermi Liquids: The Formalism