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<p>The discovery of two-dimensional magnetic materials has provided an ideal platform for exploring physical phenomena in the two-dimensional limit. However, intrinsic two-dimensional antiferromagnetic materials have been rarely reported, limiting systematic studies of their electronic properties. The discovery of novel intrinsic two-dimensional antiferromagnets and the development of robust synthesis strategies, therefore, remain significant challenges. Here, we report the chemical vapor deposition synthesis of CrOCl monolayer films and nanosheets that exhibit excellent air stability. The CrOCl morphology is tunable, ranging from two-dimensional nanosheets to three-dimensional flower-like structures, with lateral sizes ranging from several microns to continuous monolayer films. Structural characterization confirms the material’s composition and high crystalline quality. Furthermore, magnetic measurements, supported by theoretical calculations, reveal a Néel temperature for CrOCl of ≈ 14 K. This work provides a reliable route for preparing two-dimensional antiferromagnetic materials.</p>

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Chemical vapor deposition growth of continuous monolayer antiferromagnetic CrOCl films

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年12月17日

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  • Chao Chen,
  • Yulu Liu,
  • Hongyan Lu,
  • Zihao Wang,
  • Bowen Zheng,
  • Qian Guo,
  • Jingkuan Xiao,
  • Ping Wang,
  • Wanting Xu,
  • Yulin Han,
  • Mingxuan Chen,
  • Xiaofan Cai,
  • Jiabei Huang,
  • Yaqing Han,
  • Di Zhang,
  • Renjun Du,
  • Alexander S. Mayorov,
  • Ziying Li,
  • Shuai Zhang,
  • Yi Huang,
  • Tingting Cheng,
  • Zhaolong Chen,
  • Ronghua Liu,
  • Nujiang Tang,
  • Haibo Ni,
  • Di Wu,
  • Libo Gao,
  • Xiaoxiang Xi,
  • Qianghua Wang,
  • Lei Wang,
  • Kostya S. Novoselov,
  • Geliang Yu

摘要

The discovery of two-dimensional magnetic materials has provided an ideal platform for exploring physical phenomena in the two-dimensional limit. However, intrinsic two-dimensional antiferromagnetic materials have been rarely reported, limiting systematic studies of their electronic properties. The discovery of novel intrinsic two-dimensional antiferromagnets and the development of robust synthesis strategies, therefore, remain significant challenges. Here, we report the chemical vapor deposition synthesis of CrOCl monolayer films and nanosheets that exhibit excellent air stability. The CrOCl morphology is tunable, ranging from two-dimensional nanosheets to three-dimensional flower-like structures, with lateral sizes ranging from several microns to continuous monolayer films. Structural characterization confirms the material’s composition and high crystalline quality. Furthermore, magnetic measurements, supported by theoretical calculations, reveal a Néel temperature for CrOCl of ≈ 14 K. This work provides a reliable route for preparing two-dimensional antiferromagnetic materials.