Changes of charge ordered (CO) structure by partial substitution of Mn for Fe in YbFe2O4 were investigated by a transmission electron microscope (TEM), in combination with conventional dielectric measurement. It is revealed that partial substitution of Mn2+ for Fe2+ in YbFe2O4 destroyed drastically the CO structure with the wave vector of q<1/3 1/3 1/2> . Consequently polar clustering structure giving rise to honeycomb-shaped diffuse streaks was found in YbFeMnO4. The random distribution of polar clustering structure gives rise to characteristic broad dielectric dispersion.
|Journal||IOP Conference Series: Materials Science and Engineering|
|Issue number||SYMPOSIUM 6|
|Publication status||Published - Jan 1 2011|
|Event||3rd International Congress on Ceramics, ICC 2011 - Osaka, Japan|
Duration: Nov 14 2010 → Nov 18 2010
ASJC Scopus subject areas
- Materials Science(all)