Nodal Landau Fermi-liquid quasiparticles in overdoped La1.77Sr0.23CuO4

C. G. Fatuzzo, Y. Sassa, M. Månsson, S. Pailhès, O. J. Lipscombe, S. M. Hayden, L. Patthey, M. Shi, M. Grioni, H. M. Rønnow, J. Mesot, O. Tjernberg, and J. Chang
Phys. Rev. B 89, 205104 – Published 8 May 2014

Abstract

Nodal angle-resolved photoemission spectra taken on overdoped La1.77Sr0.23CuO4 are presented and analyzed. It is proven that the low-energy excitations are true Landau Fermi-liquid quasiparticles. We show that momentum and energy distribution curves can be analyzed self-consistently without quantitative knowledge of the bare band dispersion. Finally, by imposing Kramers-Kronig consistency on the self-energy Σ, insight into the quasiparticle residue is gained. We conclude by comparing our results to quasiparticle properties extracted from thermodynamic, magnetoresistance, and high-field quantum oscillation experiments on overdoped Tl2Ba2CuO6+δ.

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  • Received 6 January 2014

DOI:https://doi.org/10.1103/PhysRevB.89.205104

©2014 American Physical Society

Authors & Affiliations

C. G. Fatuzzo1, Y. Sassa2, M. Månsson1,3,4, S. Pailhès3,5, O. J. Lipscombe6, S. M. Hayden6, L. Patthey7, M. Shi7, M. Grioni1, H. M. Rønnow1, J. Mesot1,2,3, O. Tjernberg4, and J. Chang1,7,3

  • 1Institute for Condensed Matter Physics, École Polytechnique Fedérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
  • 2Laboratory for Solid State Physics, ETH Zürich, CH-8093 Zürich, Switzerland
  • 3Laboratory for Neutron Scattering, Paul Scherrer Institut, CH-5232 Villigen, Switzerland
  • 4KTH Royal Institute of Technology, Materials Physics, S-164 40 Kista, Sweden
  • 5LPMCN, CNRS, UMR 5586, Université Lyon 1, F-69622 Villeurbanne, France
  • 6H. H. Wills Physics Laboratory, University of Bristol, Bristol BS8 1TL, United Kingdom
  • 7Swiss Light Source, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland

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Vol. 89, Iss. 20 — 15 May 2014

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