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

  • C. G. Fatuzzo
  • , Y. Sassa
  • , M. Månsson
  • , S. Pailhès
  • , Oliver J Lipscombe
  • , Stephen M Hayden
  • , L Patthey
  • , M Shi
  • , M. Grioni
  • , H M Rønnow
  • , J Mesot
  • , O. Tjernberg
  • , J. Chang

Research output: Contribution to journal › Article (Academic Journal) › peer-review

12 Citations (Scopus)
383 Downloads (Pure)

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.

Original languageEnglish
Article number205104
Number of pages5
JournalPhysical Review B: Condensed Matter and Materials Physics
Volume89
Issue number20
Early online date8 May 2014
DOIs
Publication statusPublished - 15 May 2014

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