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Ferroelectricity in Perovskites with s 0 A‐Site Cations: Toward Near‐Room‐Temperature Multiferroics
Author(s) -
Kan Erjun,
Xiang Hongjun,
Lee Changhoon,
Wu Fang,
Yang Jinlong,
Whangbo MyungHwan
Publication year - 2010
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200905997
Subject(s) - multiferroics , ferroelectricity , materials science , condensed matter physics , crystallography , chemistry , physics , optoelectronics , dielectric
The origin of the ferroelectricity in the indium‐based multiferroic perovskites (In 1− x M x )MO 3 (M=Mn 0.5 Fe 0.5 ), and the question of how to lower their magnetic ordering ( T N ) and the ferroelectric Curie temperatures, was investigated by density functional calculations. The analyses explain why T N is near room temperature and why the perovskites with s 0 and s 2 A‐site cations have similar ferroelectric distortions.