Issue 28, 2021

Coexistence of magnetic and electric orderings in a divalent Cr2+-based multiaxial molecular ferroelectric

Abstract

Multiferroic materials have attracted great interest because of their underlying new science and promising applications in data storage and mutual control devices. However, they are still very rare and highly imperative to be developed. Here, we report an organic–inorganic hybrid perovskite trimethylchloromethylammonium chromium chloride (TMCM–CrCl3), showing the coexistence of magnetic and electric orderings. It displays a paraelectric–ferroelectric phase transition at 397 K with an Aizu notation of 6/mFm, and spin-canted antiferromagnetic ordering with a Néel temperature of 4.8 K. The ferroelectricity originates from the orientational ordering of TMCM cations, and the magnetism is from the [CrCl3] framework. Remarkably, TMCM–CrCl3 is the first experimentally confirmed divalent Cr2+-based multiferroic material as far as we know. A new category of hybrid multiferroic materials is pointed out in this work, and more Cr2+-based multiferroic materials will be expectedly developed in the future.

Graphical abstract: Coexistence of magnetic and electric orderings in a divalent Cr2+-based multiaxial molecular ferroelectric

Supplementary files

Article information

Article type
Edge Article
Submitted
03 Apr. 2021
Accepted
14 Jūn. 2021
First published
15 Jūn. 2021
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY-NC license

Chem. Sci., 2021,12, 9742-9747

Coexistence of magnetic and electric orderings in a divalent Cr2+-based multiaxial molecular ferroelectric

Y. Ai, R. Sun, Y. Zeng, J. Liu, Y. Tang, B. Wang, Z. Wang, S. Gao and R. Xiong, Chem. Sci., 2021, 12, 9742 DOI: 10.1039/D1SC01871J

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