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Supramolecular Rotor Assembly for the Design of a Hybrid Ferroelectric‐Antiferromagnetic Multiferroic Semiconductor.

Authors :
Wang, Na
Li, Hua‐Kai
Shen, Huai‐Yi
Ye, Le
Xu, Ze‐Jiang
Ren, Mei‐Ling
Yao, Nian‐Tao
Shi, Chao
Ye, Heng‐Yun
Miao, Le‐Ping
Source :
Angewandte Chemie International Edition. Dec2024, p1. 8p. 7 Illustrations.
Publication Year :
2024

Abstract

Ferroelectric (FE)‐antiferromagnetic (AFM) multiferroic materials have sparked growing interest due to their huge possibilities in energy‐saving, photoelectric devices, nonvolatile storage, and switches. However, realizing FE‐AFM properties in a hybrid molecular material is difficult because ferroelectric and magnetic orders are commonly mutually exclusive. Here, we report an FE‐AFM multiferroic semiconductor [NH4(18‐crown‐6)]2[Mn(SCN)4] (<bold>NCMS</bold>) by supramolecular assembly approach via molecular rotor synthon [NH4(18‐crown‐6)] and inorganic magnetic module [Mn(SCN)4]. Interestingly, <bold>NCMS</bold> shows good ferroelectricity with a spontaneous polarization (<italic>P</italic>s) of 5.94 μC cm−2 higher than most crown‐ether‐based ferroelectrics. Especially, the realization of antiferromagnetism is for the first time in the crown ether hybrid perovskite ferroic systems. Additionally, semiconductor <bold>NCMS</bold> displays an X‐ray radiation detection response with a large photo/dark current on‐off ratio (197). Our study not only gives a deep insight into understanding multiferroic properties but also provides a novel and efficient approach to realizing high‐performance hybrid multiferroic materials. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
14337851
Database :
Academic Search Index
Journal :
Angewandte Chemie International Edition
Publication Type :
Academic Journal
Accession number :
181479621
Full Text :
https://doi.org/10.1002/anie.202421298