Journal
PHYSICAL REVIEW B
Volume 78, Issue 10, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.78.100505
Keywords
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Funding
- DOE Office of Science
- Division of Materials Science [DE-FG03-01ER45929-A001, DE-AC02-76SF00515]
- NSF [DMR-0604701, DMR-0705086]
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Samples of Nd2-xCexCuO4, 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 approximate to 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.
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