Analysis of the spectral function ofobtained by angle-resolved photoemission spectroscopy
- 15 September 2008
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 78 (10), 100505
- https://doi.org/10.1103/physrevb.78.100505
Abstract
Samples of , an electron-doped high-temperature superconducting cuprate, near optimal doping at were measured via angle-resolved photoemission. We report a renormalization feature in the self-energy (“kink”) in the band dispersion at 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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