Strong ferroelectricity in one-dimensional materials self-assembled by superatomic metal halide clusters

IF 6.5 2区物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY Frontiers of Physics Pub Date : 2024-08-19 DOI:10.1007/s11467-024-1434-3

Yu Guo, Yang Zhao, Qiao Ling, Si Zhou, Jijun Zhao

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Abstract

Cluster-assembled materials have long been pursued as they can create some unprecedented and desirable properties. Herein, we assemble a class of one-dimensional (1D) ReNX₄ (X = F, Cl, Br and I) and MF₅ (M = V, Nb and Ta) nanowires by covalently linking their superatomic clusters. These assembled 1D nanowires exhibit outstanding energetic and dynamic stabilities, and hold sizable spontaneous polarization, low ferroelectric switching barriers and high critical temperature. Their superior ferroelectricity is originated from d⁰-configuration transition metal ions generated by the hybridization of empty d orbitals of metal atoms and p orbitals of non-metal atoms. These critical insights pave a new avenue to fabricate 1D ferroelectrics toward the development of miniaturized and high-density electronic devices using building blocks as cluster with precise structures and functionalities.

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超原子金属卤化物团簇自组装一维材料中的强铁电性

长期以来，人们一直在研究簇组装材料，因为它们可以产生一些前所未有的理想特性。在这里，我们通过共价连接超原子团簇，组装出一类一维（1D）ReNX4（X = F、Cl、Br 和 I）和 MF5（M = V、Nb 和 Ta）纳米线。这些组装好的一维纳米线表现出卓越的能量和动态稳定性，并具有可观的自发极化、低铁电开关势垒和高临界温度。它们卓越的铁电性源于金属原子的空 d 轨道和非金属原子的 p 轨道杂化产生的 d0 配置过渡金属离子。这些重要见解为制造一维铁电体铺平了一条新的道路，从而利用具有精确结构和功能的构件集群，开发出小型化和高密度的电子器件。

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来源期刊

Frontiers of Physics PHYSICS, MULTIDISCIPLINARY-

CiteScore

9.20

自引率

9.30%

发文量

898

审稿时长

6-12 weeks

期刊介绍： Frontiers of Physics is an international peer-reviewed journal dedicated to showcasing the latest advancements and significant progress in various research areas within the field of physics. The journal's scope is broad, covering a range of topics that include: Quantum computation and quantum information Atomic, molecular, and optical physics Condensed matter physics, material sciences, and interdisciplinary research Particle, nuclear physics, astrophysics, and cosmology The journal's mission is to highlight frontier achievements, hot topics, and cross-disciplinary points in physics, facilitating communication and idea exchange among physicists both in China and internationally. It serves as a platform for researchers to share their findings and insights, fostering collaboration and innovation across different areas of physics.