NEUTRON-DIFFRACTION STUDIES OF GECUO3

Authors
GREEN MA KURMOO M STALICK JK DAY P
Citation
Ma. Green et al., NEUTRON-DIFFRACTION STUDIES OF GECUO3, Synthetic metals, 71(1-3), 1995, pp. 1927-1928
Citations number
7
Categorie Soggetti
Physics, Condensed Matter","Metallurgy & Metallurigical Engineering
Journal title
Synthetic metals → ACNP
ISSN journal
03796779
Volume
71
Issue
1-3
Year of publication
1995
Pages
1927 - 1928
Database
ISI
SICI code
0379-6779(1995)71:1-3<1927:NSOG>2.0.ZU;2-X
Abstract
Crystal structure of CuGeO3, which has been reported to undergo a spin -Peierls transition at 14 K, has been determined by neutron powder dif fraction at 300, 20 and 4.2 K. The structure has been refined in the s pace group Pmma, ie without displacement of the Cu atoms from a one-di mensional chain. Anisotropic broadening of (h01) reflections, observed in all three sets, is modelled bu an orthorhombic micro-strain along a and c, perpendicular to the Cu-Cu chains.