Open AccessHexagonal LuMnO 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/s1600536801015896
Subject(s) - hexagonal crystal system , crystallography , bond length , ferroelectricity , materials science , inversion (geology) , crystal structure , condensed matter physics , chemistry , physics , geology , dielectric , paleontology , optoelectronics , structural basin
The crystal structure of hexagonal LuMnO 3 at room temperature is isomorphous with YMnO 3 and deviates in important details from the early work of Yakel et al. [ Acta Cryst . (1963), 16 , 957–962]. Mn is near the centre of its oxygen coordination environment. On the threefold axes, the apical O—Lu bonds have alternating long and short bond lengths, leading to ferroelectric behaviour. The sample studied was composed of almost equal volumes of inversion twins.