Ellipsometric measurements of high-Tc compounds
- 1 March 1989
- journal article
- Published by Optica Publishing Group in Journal of the Optical Society of America B
- Vol. 6 (3), 470-474
- https://doi.org/10.1364/josab.6.000470
Abstract
Ellipsometric measurements of the pseudodielectric function of YBa2Cu3O7−x in the energy region 1.7–9.5 eV are presented. The variations in the optical spectra as a function of oxygen concentration and for substitution of different lanthanide ions for yttrium are discussed. New results obtained with CaBi2 Sr2Cu2O8 are shown and interpreted in terms of recent band-structure calculations.Keywords
This publication has 29 references indexed in Scilit:
- Weight of 3d9 ligand hole configuration as function of oxygen content in YBa2Cu3O6.5+x by joint L3 XAS and XPSPhysica C: Superconductivity and its Applications, 1988
- Optical Spectra of Superconducting YBa 2 Cu 3 O 7-δ Films: Evidence for Cu ++ d-d TransitionsEurophysics Letters, 1988
- Electronic excitations of theYBa2Cu3O7−xsuperconductor: A study by transmission electron-energy-loss spectroscopy with an electron microprobePhysical Review B, 1988
- Effect of bismuth on high- cuprate superconductors: Electronic structure ofPhysical Review Letters, 1988
- Evidence for holes on oxygen sites in the high- superconductors andPhysical Review B, 1988
- X-ray photoemission, bremsstrahlung isochromat, Auger-electron, and optical spectroscopy studies of Y-Ba-Cu-O thin filmsPhysical Review B, 1988
- Electronic structure of the high Tc superconductor Ba2YCu3O6.9Solid State Communications, 1987
- Excitonic absorption and superconductivity inPhysical Review Letters, 1987
- Normal-state gap transition in Cu-O superconductorsPhysical Review B, 1987
- Electronic structure and properties of YBa2Cu3O7-δ, a low dimensional, low density of states superconductorPhysics Letters A, 1987