Open AccessHexagonal YbMnO 3 revisited
Author(s) -
Van Aken Bas B.,
Meetsma Auke,
Palstra Thomas T. M.
Publication year - 2001
Publication title -
acta crystallographica section e
Language(s) - English
Resource type - Journals
ISSN - 1600-5368
DOI - 10.1107/s1600536801015094
Subject(s) - ion , ytterbium , hexagonal crystal system , crystallography , ferroelectricity , manganese , trigonal bipyramidal molecular geometry , crystal structure , trigonal crystal system , materials science , chemistry , mineralogy , condensed matter physics , physics , doping , metallurgy , optoelectronics , organic chemistry , dielectric
The crystal structure of hexagonal ytterbium manganese oxide, YbMnO 3 , has been refined at room temperature. It is isomorphous with YMnO 3 . The Mn ions lie near the centre of a trigonal bipyramid. Although the Yb ions lie on threefold axes, the apical oxygen ions are at dissimilar distances, leading to ferroelectric behaviour. The sample studied was composed of almost an equal volume of inversion twins.