Large Magnetoelectric Coupling Near Room Temperature in Synthetic Melanostibite Mn2FeSbO6.
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 Mn2FeSbO6(R3‾ 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.
Dpto. Ingeniería mecánica, química y diseño industrial, ETSIDI. Universidad Politécnica de Madrid, 28012, Madrid, Spain.
Antonio J
0000-0002-5660-1097
AJ
Dos Santos-García
Dpto. Química Inorganica I, Fac. Químicas, Universidad Complutense de Madrid, 28040, Madrid, Spain.
Elena
E
Solana-Madruga
Institut Laue-Langevin, 38042, Grenoble Cedex, France.
Clemens
C
Ritter
Dpto. Química Física I, MALTA Consolider Team, Fac. Químicas, Universidad Complutense de Madrid, 28040, Madrid, Spain.
Adrián
A
Andrada-Chacón
Dpto. Química Física I, MALTA Consolider Team, Fac. Químicas, Universidad Complutense de Madrid, 28040, Madrid, Spain.
Javier
J
Sánchez-Benítez
Instituto de Ciencias de Materiales, CSIC, 28049, Madrid, Spain.|Unidad Asociada "Laboratorio de heteroestructuras con aplicación en espintrónica", UCM/CSIC, 28049, Madrid, Spain.
Federico J
FJ
Mompean
Instituto de Ciencias de Materiales, CSIC, 28049, Madrid, Spain.|Unidad Asociada "Laboratorio de heteroestructuras con aplicación en espintrónica", UCM/CSIC, 28049, Madrid, Spain.
Mar
M
Garcia-Hernandez
Dpto. Química Inorganica I, Fac. Químicas, Universidad Complutense de Madrid, 28040, Madrid, Spain.
Regino
R
Sáez-Puche
Dpto. de Física de Materiales, Fac. Físicas, GFMC, Universidad Complutense de Madrid, 28040, Madrid, Spain.|Unidad Asociada "Laboratorio de heteroestructuras con aplicación en espintrónica", UCM/CSIC, 28049, Madrid, Spain.
Rainer
R
Schmidt
high-pressure chemistry; ilmenite; magnetic properties; magnetoelectric coupling; non-linear MEC