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Nodal Landau Fermi-liquid quasiparticles in overdoped La1.77Sr0.23CuO4
KTH, School of Information and Communication Technology (ICT), Materials- and Nano Physics, Material Physics, MF.ORCID iD: 0000-0002-3086-9642
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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
Abstract [en]

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.
Keyword [en]
High-Temperature Superconductors, Electronic Specific-Heat, T-C Superconductor, Cuprate Superconductors, Quantum Oscillations, La2-Xsrxcuo4, Surface, Phase
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URN: urn:nbn:se:kth:diva-146137DOI: 10.1103/PhysRevB.89.205104ISI: 000335535600004Scopus ID: 2-s2.0-84900519019OAI: oai:DiVA.org:kth-146137DiVA: diva2:723186
Funder
Swedish Research Council
Note

QC 20140610

Available from: 2014-06-10 Created: 2014-06-09 Last updated: 2017-12-05Bibliographically approved

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Tjernberg, Oscar

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