THE ENERGY DISPERSION OF THE SINGLET CORRELATED IMPURITY BAND IN LAYERED CUPRATES

Authors
EREMIN MV MARKENDORF R VARLAMOV SV
Citation
Mv. Eremin et al., THE ENERGY DISPERSION OF THE SINGLET CORRELATED IMPURITY BAND IN LAYERED CUPRATES, Solid state communications, 88(1), 1993, pp. 15-18
Citations number
25
Categorie Soggetti
Physics, Condensed Matter
Journal title
Solid state communications → ACNP
ISSN journal
00381098
Volume
88
Issue
1
Year of publication
1993
Pages
15 - 18
Database
ISI
SICI code
0038-1098(1993)88:1<15:TEDOTS>2.0.ZU;2-S
Abstract
The Green's function method is applied to the calculation of the low e nergy spectrum in layered cuprates using Hubbard projection operators. Hund's and Kondo-like exchange, copper-oxygen and oxygen-oxygen hoppi ng are taken into account. An analytical expression for the impurity b and has been obtained. This expression is analyzed in connection with considerations of Zhang and Rice, Matsukawa and Fukuyama and others th at serve as the basis of the so-called t-J model.