eprintid: 1809
rev_number: 9
eprint_status: archive
userid: 5
dir: disk0/00/00/18/09
datestamp: 2016-07-11 12:39:42
lastmod: 2016-07-11 12:40:30
status_changed: 2016-07-11 12:39:42
type: article
metadata_visibility: show
creators_name: P., D.H. Yen
creators_name: N., T. Hang
creators_name: Dinh, Van Chau
creators_name: Dinh, Van Thuong
creators_name: Hoang, Nam Nhat
creators_id: dinhchau@vnu.edu.vn
creators_id: nhathn@vnu.edu.vn
title: Estimation of Valence Distribution in Perovskites using the Bond Valence Method
ispublished: pub
subjects: Phys
subjects: isi
divisions: fac_physic
abstract: This paper presents the application of the bond valence method to estimate the valence charge distribution in several perovskite systems: La1-xxPbxMn03 (x=0.1-0.5), La0.6Sr0.4.xTixMnO3 (x=0.0- 0.25) and La1=xSrxCoO3 (x=0.1-0.5). The results showed a failure of elastic bonding mechanism in all compounds and revealed a deficit of valence charge in the unit cells. This valence deficit was not associated with the structural defects and is equally localized in all coordination spheres. As the content of substitution increased, the charge deficit declined systematically from balanced level, signifying the transfer of charge from the B-O6 to A-O12 spheres. This transfer reaches near 2 electrons per unit cell. The possible impact of the limitted accuracy of available structural data was considered.
date: 2015
date_type: published
full_text_status: none
publication: Information
volume: 18
number: 7
pagerange: 2917-2926
refereed: TRUE
citation:   P., D.H. Yen and N., T. Hang and Dinh, Van Chau and Dinh, Van Thuong and Hoang, Nam Nhat  (2015) Estimation of Valence Distribution in Perovskites using the Bond Valence Method.  Information, 18  (7).   pp. 2917-2926.