Observation of Magnetoelectric Multiferroicity in a Cubic Perovskite System: LaMn(3)Cr(4)O(12)

Physical Review Letters
Xiao WangYouwen Long

Abstract

Magnetoelectric multiferroicity is not expected to occur in a cubic perovskite system because of the high structural symmetry. By versatile measurements in magnetization, dielectric constant, electric polarization, neutron and x-ray diffraction, Raman scattering, as well as theoretical calculations, we reveal that the A-site ordered perovskite LaMn(3)Cr(4)O(12) with cubic symmetry is a novel spin-driven multiferroic system with strong magnetoelectric coupling effects. When a magnetic field is applied in parallel (perpendicular) to an electric field, the ferroelectric polarization can be enhanced (suppressed) significantly. The unique multiferroic phenomenon observed in this cubic perovskite cannot be understood by conventional spin-driven microscopic mechanisms. Instead, a nontrivial effect involving the interactions between two magnetic sublattices is likely to play a crucial role.

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Citations

Jan 21, 2017·Nature Communications·Hong Jian ZhaoJorge Íñiguez
May 25, 2016·Journal of Physics. Condensed Matter : an Institute of Physics Journal·J M Perez-MatoM I Aroyo
Jul 14, 2020·Nanoscale Horizons : the Home for Rapid Reports of Exceptional Significance in Nanoscience and Nanotechnolgy·Xilong XuYing Dai
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Jul 7, 2018·Acta Crystallographica. Section A, Foundations and Advances·Mark S Senn, Nicholas C Bristowe
Apr 28, 2021·Inorganic Chemistry·Yuichi OkazakiIkuya Yamada
Feb 23, 2020·Journal of the American Chemical Society·Zhehong LiuYouwen Long
Sep 3, 2020·Inorganic Chemistry·Cintli Aguilar-MaldonadoÁngel M Arévalo-López

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