Multifunctional Integration of Vanadium-Based Chalcogenides VX (X = S, Se, Te)

IF 8.7 1区化学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Materials Letters Pub Date : 2025-09-11 DOI:10.1021/acsmaterialslett.5c00908

Junlin Luo, , , Haiyu Meng, , , Ruoyan Xu, , , Xingxing Jiang, , , Yu-Qing Zhao, , , Yee Sin Ang*, , and , Xiong-Xiong Xue*,

引用次数: 0

Abstract

Two-dimensional (2D) ferromagnetic materials integrating multiple functions are promising candidates for building magnetic and electronic nanodevices. Here, we predict a series of stable 2D multifunctional ferromagnetic monolayers VX (X = S, Se, Te) encompassing indirect semiconducting and half-metallic phases with sizable spin gaps. Due to the strong ferromagnetic coupling present in the VX monolayers, the magnetic transition temperatures (Tc) of VS, VSe, and VTe reach 369, 315, and 311 K, respectively. Furthermore, the magnetic and electronic properties of VX monolayers can be sensitively modulated via mechanical strain, while the VS and VSe monolayers further exhibit negative Poisson’s ratios. The VX monolayers thus represent an unusual family of 2D ferromagnetic materials with strong mechano-electromagnetic coupling that may serve as a building block for future multifunctional nanodevices.

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钒基硫族化合物VX （X = S, Se, Te）的多功能集成

集成多种功能的二维铁磁材料是构建磁性和电子纳米器件的有希望的候选者。在这里，我们预测了一系列稳定的二维多功能铁磁单层VX (X = S, Se, Te)，包括间接半导体和半金属相，具有相当大的自旋间隙。由于VX单分子层中存在强铁磁耦合，VX、VSe和VTe的磁转变温度（Tc）分别达到369、315和311 K。此外，VX单层膜的磁性和电子性能可以通过机械应变敏感地调节，而VS和VSe单层膜进一步呈现负泊松比。因此，VX单层代表了一种不寻常的二维铁磁材料家族，具有强的机械电磁耦合，可以作为未来多功能纳米器件的基石。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ACS Materials Letters MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

14.60

自引率

3.50%

发文量

261

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