Preliminary study of electron‐energy‐loss spectra of YBa2 Cu3O7−δ
- 1 March 1988
- journal article
- research article
- Published by Wiley in Journal of Electron Microscopy Technique
- Vol. 8 (3) , 311-315
- https://doi.org/10.1002/jemt.1060080310
Abstract
We have obtained the electron‐energy‐loss spectra below 1,000 eV for YBa2Cu3O7−δ. The spectra show contributions from all elemental constituents, although the Y‐signal is very weak owing to its small concentration. The low‐loss region and the Ba‐core losses are very similar to those obtained for BaO. The Cu absorption is similar to that seen in CuO with minor differences relating to Cu concentration and anisotropy. The oxygen 1s absorption has a shape that is quite different from that obtained in CuO and shows striking orientational anisotropy. Radiation damage in the microscope is a problem and leads to changes in the shape of the oxygen edge.Keywords
This publication has 8 references indexed in Scilit:
- Valence electronic structure ofPhysical Review B, 1987
- Critical-current measurements in epitaxial films of compoundPhysical Review Letters, 1987
- Experimental electronic structure studies of La2?x Sr x CuO4Zeitschrift für Physik B Condensed Matter, 1987
- High-energy resolution electron spectrometer for 1-nm spatial analysisReview of Scientific Instruments, 1986
- Orientation dependence of core edges from anisotropic materials determined by inelastic scattering of fast electronsPhysical Review B, 1983
- Dipole selection rules for optical transitions in the fcc and bcc latticesPhysical Review B, 1980
- Direct nonvertical interband transitions at large wave vectors in aluminumPhysical Review B, 1977
- Solid state excitations by electronsPublished by Springer Nature ,1965