Analysis of the spectral function of Nd1.85 Ce0.15 CuO4 obtained by angle-resolved photoemission spectroscopy

F. Schmitt, W. S. Lee, D. H. Lu, W. Meevasana, E. Motoyama, M. Greven, Z. X. Shen

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14 Scopus citations

Abstract

Samples of Nd2-x Cex CuO4, an electron-doped high-temperature superconducting cuprate, near optimal doping at x=0.155 were measured via angle-resolved photoemission. We report a renormalization feature in the self-energy ("kink") in the band dispersion at ≈50-60 meV present in nodal and antinodal cuts across the Fermi surface. Specifically, while the kink had been seen in the antinodal region, it is now observed also in the nodal region, reminiscent of what has been observed in hole-doped cuprates.

Original languageEnglish (US)
Article number100505
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume78
Issue number10
DOIs
StatePublished - Sep 15 2008

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