STRUCTURAL TRANSITION IN THE LA2-XNDXCUO4 SYSTEM

Authors
MOMBRU AW LAPPAS A PRASSIDES K
Citation
Aw. Mombru et al., STRUCTURAL TRANSITION IN THE LA2-XNDXCUO4 SYSTEM, Journal of solid state chemistry (Print), 140(2), 1998, pp. 345-349
Citations number
18
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Physical
Journal title
Journal of solid state chemistry (Print) → ACNP
ISSN journal
00224596
Volume
140
Issue
2
Year of publication
1998
Pages
345 - 349
Database
ISI
SICI code
0022-4596(1998)140:2<345:STITLS>2.0.ZU;2-D
Abstract
The structural transition in the La2-xNdxCuO4 system is studied throug h the x = 0.45, 0.5 compositions, using neutron powder diffraction. Bo th compositions could be refined as biphasic systems represented by th e I4/mmm and the Abma space groups. The presence of T and T' phases co uld be observed in bath compositions. The apical oxygen atom in the co pper coordination octahedron can be regarded as the key for structural distortion causing the transition from T to T' structures. (C) 1998 A cademic Press.