Spin mapping of intralayer antiferromagnetism and field-induced spin reorientation in monolayer CrTe2

Xian，Jing Jing1; Wang，Cong2; Nie，Jin Hua1; Li，Rui1; Han，Mengjiao3,4; Lin，Junhao3,4; Zhang，Wen Hao1; Liu，Zhen Yu1; Zhang，Zhi Mo1; Miao，Mao Peng1; Yi，Yangfan5; Wu，Shiwei5; Chen，Xiaodie1; Han，Junbo1; Xia，Zhengcai1; Ji，Wei2; Fu，Ying Shuang1

2022-12-01

10.1038/s41467-021-27834-z

Nature Communications   影响因子和分区

2041-1723

Intrinsic antiferromagnetism in van der Waals (vdW) monolayer (ML) crystals enriches our understanding of two-dimensional (2D) magnetic orders and presents several advantages over ferromagnetism in spintronic applications. However, studies of 2D intrinsic antiferromagnetism are sparse, owing to the lack of net magnetisation. Here, by combining spin-polarised scanning tunnelling microscopy and first-principles calculations, we investigate the magnetism of vdW ML CrTe, which has been successfully grown through molecular-beam epitaxy. We observe a stable antiferromagnetic (AFM) order at the atomic scale in the ML crystal, whose bulk is ferromagnetic, and correlate its imaged zigzag spin texture with the atomic lattice structure. The AFM order exhibits an intriguing noncollinear spin reorientation under magnetic fields, consistent with its calculated moderate magnetic anisotropy. The findings of this study demonstrate the intricacy of 2D vdW magnetic materials and pave the way for their in-depth analysis.

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2-s2.0-85122830117

Scopus

1.School of Physics and Wuhan National High Magnetic Field Center,Huazhong University of Science and Technology,Wuhan,430074,China
2.Beijing Key Laboratory of Optoelectronic Functional Materials and Micro-Nano Devices,Department of Physics,Renmin University of China,Beijing,100872,China
3.Department of Physics,Southern University of Science and Technology,Shenzhen,518055,China
4.Shenzhen Key Laboratory for Advanced Quantum Functional Materials and Devices,Southern University of Science and Technology,Shenzhen,518055,China
5.State Key Laboratory of Surface Physics,Department of Physics,Fudan University,Shanghai,200433,China

Xian，Jing Jing,Wang，Cong,Nie，Jin Hua,et al. Spin mapping of intralayer antiferromagnetism and field-induced spin reorientation in monolayer CrTe2[J]. Nature Communications,2022,13(1).

Xian，Jing Jing.,Wang，Cong.,Nie，Jin Hua.,Li，Rui.,Han，Mengjiao.,...&Fu，Ying Shuang.(2022).Spin mapping of intralayer antiferromagnetism and field-induced spin reorientation in monolayer CrTe2.Nature Communications,13(1).

Xian，Jing Jing,et al."Spin mapping of intralayer antiferromagnetism and field-induced spin reorientation in monolayer CrTe2".Nature Communications 13.1(2022).