Anomalous electronic structure and pseudogap effects in Nd_1.85Ce_0.15CuO_4

Preprint

12 July 2001

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0107244

Abstract

We report a high-resolution angle-resolved photoemission spectroscopic (ARPES) study of the electron-doped (n-type) cuprate superconductor Nd_1.85Ce_0.15CuO_4. We observe regions along the Fermi surface where the near-E_F intensity is suppressed and the spectral features are broad in a manner reminiscent of the high-energy ``pseudogap'' in the underdoped p-type (hole doped) cuprates. However, instead of occurring near the (pi, 0) region, as in the p-type materials, this pseudogap falls near the intersection of the underlying Fermi surface with the antiferromagnetic Brillouin zone boundary.

Keywords

ANOMALOUS ELECTRONIC
ELECTRONIC STRUCTURE
ND_1.85CE_0.15CUO_4
PSEUDOGAP EFFECTS
ANTIFERROMAGNETIC
SUPERCONDUCTOR
FERMI SURFACE
CUPRATE
DOPED

All Related Versions

Version 1, 2001-07-12, ArXiv
Published version: Physical Review Letters, 87 (14), 147003.

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