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Large Magnetoelectric Coupling Near Room Temperature in Synthetic Melanostibite Mn 2 FeSbO 6
Author(s) -
Dos santosGarcía Antonio J.,
SolanaMadruga Elena,
Ritter Clemens,
AndradaChacón Adrián,
SánchezBenítez Javier,
Mompean Federico J.,
GarciaHernandez Mar,
SáezPuche Regino,
Schmidt Rainer
Publication year - 2017
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201609762
Subject(s) - multiferroics , magnetocapacitance , ferroelectricity , materials science , antiferroelectricity , coupling (piping) , magnetostriction , ferromagnetism , condensed matter physics , ilmenite , dielectric , optoelectronics , mineralogy , chemistry , physics , composite material , magnetic field , quantum mechanics
Multiferroic materials exhibit two or more ferroic orders and have potential applications as multifunctional materials in the electronics industry. A coupling of ferroelectricity and ferromagnetism is hereby particularly promising. We show that the synthetic melanostibite mineral Mn 2 FeSbO 6 ( R 3 ‾ space group) with ilmenite‐type structure exhibits cation off‐centering that results in alternating modulated displacements, thus allowing antiferroelectricity to occur. Massive magnetoelectric coupling (MEC) and magnetocapacitance effect of up to 4000 % was detected at a record high temperature of 260 K. The multiferroic behavior is based on the imbalance of cationic displacements caused by a magnetostrictive mechanism, which sets up an unprecedented example to pave the way for the development of highly effective MEC devices operational at or near room temperature.