REDETERMINATION OF THE STRUCTURE OF LA2CU2O5 BY NEUTRON POWDER DIFFRACTION

Authors
KHASANOVA NR IZUMI F HIROI Z TAKANO M HUANG Q SANTORO A
Citation
Nr. Khasanova et al., REDETERMINATION OF THE STRUCTURE OF LA2CU2O5 BY NEUTRON POWDER DIFFRACTION, Acta crystallographica. Section C, Crystal structure communications, 52, 1996, pp. 2381-2384
Citations number
15
Categorie Soggetti
Crystallography
Journal title
Acta crystallographica. Section C, Crystal structure communications → ACNP
ISSN journal
01082701
Volume
52
Year of publication
1996
Part
10
Pages
2381 - 2384
Database
ISI
SICI code
0108-2701(1996)52:<2381:ROTSOL>2.0.ZU;2-O
Abstract
Dicopper(II) dilanthanum pentaoxide, La2Cu2O5, has been prepared using a high-pressure technique. Its structure at 296 and 10 K was analysed by Rietveld refinements using neutron powder diffraction data. The st ructure of La2Cu2O5 comprises CuO5 square pyramids connected to each o ther in three dimensions by corner sharing and ten-coordinate La3+ ion s occupying positions next to oxygen vacancies which form tunnels alon g the c axis.