Electronic structure and hole distribution in CuO2 plane of HTSC
โ Scribed by L. Adamowicz; A. Pondo
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 384 KB
- Volume
- 192
- Category
- Article
- ISSN
- 0921-4534
No coin nor oath required. For personal study only.
โฆ Synopsis
The extended three-band Hubbard model has been used to calculate the population of Cu and O atomic sites by the dopinginduced holes. Total and projected partial densities of states were examined for a wide range of model parameters. Strong enhancement of the density of states near the Fermi level has been obtained. The localization of holes on Cu sites is connected with the increase of mobile holes which accumulate mainly on O sites.
๐ SIMILAR VOLUMES
A model for HTSC is considered where electrons in the CuO2 planes belong to two separate groups: (a) those localized on Cu atoms with single occupation due to a large Coulomb interaction; and (b) conduction electrons in bands formed from p states of oxygens with direct oxygen-oxygen overlap. A tight
Using the two-dimensional model of d-pairing for HTSC created by us recently by path integration technique, we calculate the collective mode spectrum for all superconductive states of Cu02 planes arisen in symmetry classification. The number of degrees of freedom of order parameter, which is equal t