Nodal Landau Fermi-liquid quasiparticles in overdoped La1.77Sr0.23CuO4
2014 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 89, no 20, 205104- p.Article in journal (Refereed) Published
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 Sigma, 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+delta.
Place, publisher, year, edition, pages
2014. Vol. 89, no 20, 205104- p.
High-Temperature Superconductors, Electronic Specific-Heat, T-C Superconductor, Cuprate Superconductors, Quantum Oscillations, La2-Xsrxcuo4, Surface, Phase
Other Physics Topics
IdentifiersURN: urn:nbn:se:kth:diva-146137DOI: 10.1103/PhysRevB.89.205104ISI: 000335535600004ScopusID: 2-s2.0-84900519019OAI: oai:DiVA.org:kth-146137DiVA: diva2:723186
FunderSwedish Research Council
QC 201406102014-06-102014-06-092014-06-10Bibliographically approved