Spatial distribution of defect electrons in the Y2Ba4Cu7O15 lattice

Authors
Nasredinov, FS Seregin, NP Seregin, PP
Citation
Fs. Nasredinov et al., Spatial distribution of defect electrons in the Y2Ba4Cu7O15 lattice, PHYS SOL ST, 42(4), 2000, pp. 621-625
Citations number
11
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICS OF THE SOLID STATE
ISSN journal
10637834 → ACNP
Volume
42
Issue
4
Year of publication
2000
Pages
621 - 625
Database
ISI
SICI code
1063-7834(2000)42:4<621:SDODEI>2.0.ZU;2-Z
Abstract
The method of emission Mossbauer spectroscopy on the Cu-67(Zn-67) isotope i s used for determining the parameters of nuclear quadrupole interaction at copper sites of the Y2Ba4Cu7O15 lattice. The tensor of crystal electric fie ld gradient at all the sites of the lattice is calculated using the model o f point charges. A comparison of experimental and calculated parameters lea ds to the conclusion that holes in the Y2Ba4Cu7O15 lattice are localized pr edominantly at positions of chain oxygen. (C) 2000 MAIK "Nauka/ Interperiod ica".