Tunable synthesis of atomic one-dimensional VxTey magnets within single-walled carbon nanotubes

Xuhua Lan, Lin Geng, Zhen Zhang, Yunfei Li, Jian Yuan, Chen-Xu Zhou, Song Huang, Ziyi Hu, Jing Li, Chengpeng Yang, Yong Zhang, Zhaochuan Fan, Dan Tian (), Xiaoxu Zhao (), Qingwen Li () and Lixing Kang ()
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Xuhua Lan: University of Science and Technology of China
Lin Geng: Chinese Academy of Sciences
Zhen Zhang: Chinese Academy of Sciences
Yunfei Li: University of Science and Technology of China
Jian Yuan: Chinese Academy of Sciences
Chen-Xu Zhou: Chinese Academy of Sciences
Song Huang: Peking University
Ziyi Hu: Quzhou University
Jing Li: Chinese Academy of Sciences
Chengpeng Yang: Chinese Academy of Sciences
Yong Zhang: Chinese Academy of Sciences
Zhaochuan Fan: University of Science and Technology of China
Dan Tian: Nanjing Forestry University
Xiaoxu Zhao: Peking University
Qingwen Li: University of Science and Technology of China
Lixing Kang: University of Science and Technology of China

Nature Communications, 2025, vol. 16, issue 1, 1-10

Abstract: Abstract The unstable configurations and uncontrollable stoichiometric ratios of atomically-thick one-dimensional (1D) magnets pose challenges for practical applications. Here, we employ a spatially confined domain strategy to obtain 1D vanadium tellurides (VxTey) with distinctive stoichiometry within single-walled carbon nanotubes (SWCNTs). Confined by SWCNTs with different inner diameters, three unconventional air-stable VxTey can be generated: 1D 1H-VTe2, V6Te6, and VTe3. Atomically resolved electron microscopy systematically unveils the conformational distributions of these three phases inside SWCNTs. Density functional theory (DFT) calculations indicate that these diverse VxTey phases exhibit different intrinsic electronic structures, which correspond to ferromagnetic, antiferromagnetic, and non-magnetic properties. Furthermore, the magnetic response and magnetic anisotropy of the 1D VxTey@SWCNTs assembly are experimentally confirmed. This work highlights the preparation of air-stable atomic 1D magnets, offering promising solutions for the design of next-generation spintronic devices.

Date: 2025
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DOI: 10.1038/s41467-025-61591-7

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