A comparative study of the electronic structure of the high-Tcsuperconductor YBa2Cu3O7in its two proposed crystal structures
- 30 December 1987
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 20 (36) , L1021-L1028
- https://doi.org/10.1088/0022-3719/20/36/010
Abstract
The authors have investigated the electronic structure of YBa2Cu3O7 in its generally accepted crystal structure, and the one proposed recently by Reller, Bednorz and Muller. Overall, the electronic structures are quite similar, but there are differences in details, especially at the Fermi level. Although the total densities of states at the Fermi level are about the same in the two crystal structures (about 3 states per eV-unit cell), the repartition at different local atomic sites is substantially different. They find that the structure proposed by Reller and co-workers also presents substantial anisotropy along the c-axis in the electronic structure.Keywords
This publication has 16 references indexed in Scilit:
- Structure of the high-temperature superconductor Ba2YCu3O7 by X-ray and neutron powder diffractionSolid State Communications, 1987
- Alternate structure for Ba2YCu3O7Zeitschrift für Physik B Condensed Matter, 1987
- Electronic structure of the high Tc superconductor Ba2YCu3O6.9Solid State Communications, 1987
- Structure of the single-phase high-temperature superconductor YBa2Cu3O7−δApplied Physics Letters, 1987
- Structure of the 100 K Superconductor Ba 2 YCu 3 O 7 between (5 ÷ 300) K by Neutron Powder DiffractionEurophysics Letters, 1987
- Structure and crystal chemistry of the high-Tc superconductor YBa2Cu3O7−xNature, 1987
- Electron-phonon interaction in the new superconductors (Ba,SrPhysical Review Letters, 1987
- Electronic band properties and superconductivity inPhysical Review Letters, 1987
- Structure of Ba2 YCu3O6.26 at 20 and 298K by single-crystal neutron diffrationJournal de Physique, 1987
- Electronic Structure from the Point of View of the Local Atomic EnvironmentPublished by Elsevier ,1980