THE ENERGY DISPERSION OF THE CHAIN BAND IN YBA2CU3O6+Y AND ITS EFFECTON THE CU(2) NQR FREQUENCY

Authors
EREMIN MV MARKENDORF R SOLOVJANOV SG
Citation
Mv. Eremin et al., THE ENERGY DISPERSION OF THE CHAIN BAND IN YBA2CU3O6+Y AND ITS EFFECTON THE CU(2) NQR FREQUENCY, Zeitschrift fur Naturforschung. A, A journal of physical sciences, 49(1-2), 1994, pp. 379-384
Citations number
16
Categorie Soggetti
Chemistry Physical",Physics
Journal title
Zeitschrift fur Naturforschung. A, A journal of physical sciences → ACNP
ISSN journal
09320784
Volume
49
Issue
1-2
Year of publication
1994
Pages
379 - 384
Database
ISI
SICI code
0932-0784(1994)49:1-2<379:TEDOTC>2.0.ZU;2-3
Abstract
The energy dispersion of the chain band has been determined in the fra mework of the Hubbard model. The results are in agreement along the GA MMA-S and GAMMA-Y lines of the Brillouin zone with photoemission data. The amount of d3z2-r2 states is zero at y=0 and increases to 10% at y =1. The admixture is due to the hybridization of Cu(1) dy2-z2 states w ith Cu(2) d3z2-r2 states via apical oxygen. The effect of this admixtu re on the NQR frequency of Cu(2) is discussed.