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Publication
Physical Review B
Paper
Electronic structure of HgBa2CaCu2O6+δ epitaxial films measured by x-ray photoemission
Abstract
The electronic structure and chemical states of HgBa2CaCu2O6+δ epitaxial films have been studied with x-ray photelectron spectroscopy. Signals from the superconducting phase dominate all the core-level spectra, and a clear Fermi edge is observed in the valence-band region. The Ba, Ca, Cu, and O core levels are similar to those of Tl2Ba2CaCu2O8+δ, but distinct differences are observed in the valence bands which are consistent with differences in the calculated densities of states. © 1995 The American Physical Society.