High temperature magnetoelectric effect in Fe2TeO6

IF 8.4 1区材料科学 Q1 CHEMISTRY, PHYSICAL Journal of Materiomics Pub Date : 2024-11-21 DOI:10.1016/j.jmat.2024.100977

Guoqing Ma, Di Zhou, Yunlong Xie, Shuhan Zheng, Meifeng Liu, Leili Tan, Zhen Liu, Fei Liu, Yao Li, Zhen Ma, Yongjun Zhang, Lin Lin, Min Zeng, Xiuzhang Wang, Saiyu Wang, Hong Li, Shuai Dong, Jun-Ming Liu

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Abstract

Fe₂TeO₆ has long been considered as a promising high-temperature magnetoelectric (ME) material, while the magnetoelectricity and magnetic ground state of Fe₂TeO₆ have not been well characterized or understood yet. In the present work, we report the systematical study of magnetism, ferroelectricity, ME effect, first principles calculation, and Monte Carlo simulation of Fe₂TeO₆ single crystals. Fe₂TeO₆ exhibits linear ME effect below T_N ∼ 208 K, and only diagonal ME coefficients appears to be non-zero, which agrees with the magnetic point group 4/m'm'm'. The calculated magnetic ground state agrees with previous neutron diffraction, and the strong intra(inter)-bilayer interactions coincide with the high T_N of Fe₂TeO₆. This work will contribute to the understanding of A₂BO₆ ME family and the exploration of high temperature ME materials.

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Fe2TeO6 中的高温磁电效应

一直以来，Fe2TeO6 被认为是一种很有前途的高温磁电（ME）材料，但人们对 Fe2TeO6 的磁电性和磁基态还没有很好的表征和理解。在本研究中，我们报告了对 Fe2TeO6 单晶的磁性、铁电性、ME 效应、第一性原理计算和蒙特卡罗模拟的系统研究。Fe2TeO6 在 TN ∼ 208 K 以下表现出线性 ME 效应，且只有对角线 ME 系数不为零，这与磁点群 4/m'm'm' 相吻合。计算出的磁基态与之前的中子衍射结果一致，而强的层内（层间）相互作用与 Fe2TeO6 的高 TN 相吻合。这项工作将有助于理解 A2BO6 ME 家族和探索高温 ME 材料。

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来源期刊

Journal of Materiomics Materials Science-Metals and Alloys

CiteScore

14.30

自引率

6.40%

发文量

331

审稿时长

37 days

期刊介绍： The Journal of Materiomics is a peer-reviewed open-access journal that aims to serve as a forum for the continuous dissemination of research within the field of materials science. It particularly emphasizes systematic studies on the relationships between composition, processing, structure, property, and performance of advanced materials. The journal is supported by the Chinese Ceramic Society and is indexed in SCIE and Scopus. It is commonly referred to as J Materiomics.