High quality CuInP2S6 single crystal for intrinsic electric property

IF 8.4 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Journal of Materiomics Pub Date : 2025-04-18 DOI:10.1016/j.jmat.2025.101067

Changjin Guo, Yu Tan, Jiajun Zhu, Jiyang Xie, Chengding Gu, Wanbiao Hu

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引用次数: 0

Abstract

What is the nature of the electric (dielectric/ferroelectric) properties of CuInP₂S₆ (CIPS)? CIPS, considered an emerging two-dimensional (2D) ferroelectric, has been well explored in various properties and applications. However, the most important and fundamental nature, i.e. dielectric/ferroelectric property, has been controversial, because high-quality CIPS samples are grossly deficient. In this work, single crystal CIPS is successfully synthesized by the chemical vapour transport method, which presents “high quality” in terms of high purity, excellent crystallinity, uniform composition, and defect-free structure etc. that are confirmed through comprehensive characterization techniques. With performing high-quality single crystal, we fully uncover the intrinsic electric properties of CIPS through accurately identifying the atomic arrangement, electron configuration, magnetic, dielectric, and ferroelectric properties that should reach a consensus on such a disputed CIPS material. These findings serve as a pivotal benchmark for a comprehensive understanding of the inherent electric characteristics of CIPS, offering valuable insights for its future modifications and applications in various applications.

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高品质的CuInP2S6单晶具有本征电性能

CuInP2S6 （CIPS）的电（介电/铁电）性质是什么？CIPS被认为是一种新兴的二维（2D）铁电材料，在各种性质和应用方面得到了很好的探索。然而，最重要和最基本的性质，即介电/铁电性质，一直存在争议，因为高质量的CIPS样品严重缺乏。本研究成功地通过化学气相输运法合成了单晶CIPS，通过综合表征技术，证实了单晶CIPS在纯度高、结晶度好、成分均匀、结构无缺陷等方面具有“高品质”。通过制备高质量的单晶，通过对原子排列、电子排布、磁性、介电性和铁电性的准确识别，充分揭示了CIPS的内在电学性质，对这一有争议的CIPS材料应达成共识。这些发现是全面了解CIPS固有电特性的关键基准，为其未来的修改和在各种应用中的应用提供了有价值的见解。

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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.