NEUTRON-SCATTERING STUDY OF THE STRUCTURAL PHASE-TRANSITION IN EU2CUO4

Authors
VIGOUREUX P GUKASOV A BARILO SN ZHIGUNOV D
Citation
P. Vigoureux et al., NEUTRON-SCATTERING STUDY OF THE STRUCTURAL PHASE-TRANSITION IN EU2CUO4, Physica. B, Condensed matter, 234, 1997, pp. 815-817
Citations number
6
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica. B, Condensed matter → ACNP
ISSN journal
09214526
Volume
234
Year of publication
1997
Pages
815 - 817
Database
ISI
SICI code
0921-4526(1997)234:<815:NSOTSP>2.0.ZU;2-U
Abstract
A single-crystal neutron diffraction study has shown that below 170 K the tetragonal T' structure of Eu2CuO4 is orthorhombically distorted ( space group Acam). The distortion is similar to that found earlier in Gd2CuO4 and as follows from the refinement on the structure factors co llected at 20 K it can be described as a rigid rotation of the CuO4 sq uares by an angle of 2.3 degrees around the c-axis.