ELECTRONIC-STRUCTURE OF ONE-DIMENSIONAL CUPRATE, SR2CUO3

Authors
MAITI K SARMA DD MIZOKAWA T FUJIMORI A
Citation
K. Maiti et al., ELECTRONIC-STRUCTURE OF ONE-DIMENSIONAL CUPRATE, SR2CUO3, Europhysics letters, 37(5), 1997, pp. 359-364
Citations number
26
Categorie Soggetti
Physics
Journal title
Europhysics letters → ACNP
ISSN journal
02955075
Volume
37
Issue
5
Year of publication
1997
Pages
359 - 364
Database
ISI
SICI code
0295-5075(1997)37:5<359:EOOCS>2.0.ZU;2-A
Abstract
We investigate the electronic structure of the antiferromagnetic insul ator Sr2CuO3 combining photoemission measurements and various calculat ions. The results suggest that the charge transfer energy, Delta, is u nusually small, placing the bare upper Hubbard band within the oxygen p bandwidth, thereby implying that this compound is the first example of a correlated covalent insulator with a finite local moment.