Intermediate coupling model of the cuprates

2014/05/04 by Tanmoy Das, R. S. Markiewicz, A. Bansil +1 · 2 citations
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Angle-resolved photoemission spectroscopy #Condensed matter physics #Coupling (piping) #Cuprate #Electronic structure #Inelastic neutron scattering #Magnetic and transport properties of perovskites and related materials #Materials science #Neutron scattering #Photoemission spectroscopy #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Scattering #Spectral line #Spectroscopy #Superconductivity #cond-mat.str-el #cond-mat.supr-con

paper · pdf · doi:10.1080/00018732.2014.940227

published as Advances in Physics 63, 151-266 (2014) · Review to be published in Advances in Physics. 120 pages, 58 figures

openalex publication_date 2014/05/04 · arxiv created 2014/07/22 · arxiv updated 2014/09/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We review the intermediate coupling model for treating electronic correlations in the cuprates. Spectral signatures of the intermediate coupling scenario are identified and used to adduce that the cuprates fall in the intermediate rather than the weak or the strong coupling limits. A robust, ‘beyond local-density approximation’ framework for obtaining wide-ranging properties of the cuprates via a GW-approximation based self-consistent self-energy correction for incorporating correlation effects is delineated. In this way, doping- and temperature-dependent spectra, from the undoped insulator to the overdoped metal, in the normal as well as the superconducting state, with features of both weak and strong coupling can be modeled in a material-specific manner with very few parameters. Efficacy of the model is shown by considering available spectroscopic data on electron- and hole-doped cuprates from angle-resolved photoemission, scanning tunneling microscopy/spectroscopy, neutron scattering, inelastic light scattering, optical and other experiments. Generalizations to treat systems with multiple correlated bands such as the heavy-fermions, the ruthenates and the actinides are discussed.

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