Abstract
By carrying out first-principles angle-resolved photoemission (ARPES) computations within the local-density-approximation-based band theory framework, we predict the existence of surface states on the (001) surface of the superconductor Nd₂₋ₓCeₓCuO₄ (NCCO). Two surface state bands are identified in the vicinity of the Fermi energy. The associated states possess quite different characteristics in terms of their binding energy, dispersion with k∥, and the polarization and photon energy dependence. Our theoretical predictions offer new insight into the existing ARPES data on NCCO with which they are consistent.
Keywords
Nd₂₋ₓCeₓCuO₄, angle resolved photoemission, ARPES, surface states
Subject Categories
Photoemission, Superconductors
Disciplines
Physics
Publisher
American Physical Society
Publication Date
8-7-1995
Rights Information
Copyright 1995 American Physical Society
Rights Holder
American Physical Society
Recommended Citation
Lindroos, M. and Bansil, A., "Surface states and angle-resolved photoemission spectra from Nd₂₋ₓCeₓCuO₄" (1995). Physics Faculty Publications. Paper 432.
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Notes
Originally published in Physical Review Letters v.75 (1995): 1182-1185. DOI: 10.1103/PhysRevLett.75.1182