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

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.


Published in:
Physical Review B, 89, 20
Year:
2014
Publisher:
College Pk, Amer Physical Soc
ISSN:
1550-235X
Keywords:
Note:
MPBH
Laboratories:




 Record created 2014-05-13, last modified 2018-03-18

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