TY  - JOUR
ID  - SisLab1809
UR  - https://eprints.uet.vnu.edu.vn/eprints/id/eprint/1809/
IS  - 7
A1  - P., D.H. Yen
A1  - N., T. Hang
A1  - Dinh, Van Chau
A1  - Dinh, Van Thuong
A1  - Hoang, Nam Nhat
Y1  - 2015///
N2  - 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.
JF  - Information
VL  - 18
TI  - Estimation of Valence Distribution in Perovskites using the Bond Valence Method
SP  - 2917
AV  - none
EP  - 2926
ER  -