Heterodimensional superlattice with in-plane anomalous Hall effect

Jiadong Zhou; Wenjie Zhang; Yung-Chang Lin; Jin Cao; Yao Zhou; Wei Jiang; Huifang Du; Bijun Tang; Jia Shi; Bingyan Jiang; Xun Cao; Bo Lin; Qundong Fu; Chao Zhu; Wei Guo; Yizhong Huang; Yuan Yao; Stuart S P Parkin; Jianhui Zhou; Yanfeng Gao; Yeliang Wang; Yanglong Hou; Yugui Yao; Kazu Suenaga; Xiaosong Wu; Zheng Liu

doi:10.1038/s41586-022-05031-2

Heterodimensional superlattice with in-plane anomalous Hall effect

Nature. 2022 Sep;609(7925):46-51. doi: 10.1038/s41586-022-05031-2. Epub 2022 Aug 31.

Authors

Jiadong Zhou^#¹, Wenjie Zhang^#^{2

3}, Yung-Chang Lin^#⁴, Jin Cao^#⁵, Yao Zhou^{6

7}, Wei Jiang⁵, Huifang Du⁵, Bijun Tang⁶, Jia Shi⁸, Bingyan Jiang², Xun Cao⁶, Bo Lin⁶, Qundong Fu⁶, Chao Zhu⁶, Wei Guo⁵, Yizhong Huang⁶, Yuan Yao⁹, Stuart S P Parkin³, Jianhui Zhou¹⁰, Yanfeng Gao¹¹, Yeliang Wang¹², Yanglong Hou¹³, Yugui Yao¹⁴, Kazu Suenaga¹⁵, Xiaosong Wu^{16

17}, Zheng Liu^{18

19

20}

Affiliations

¹ Centre for Quantum Physics, Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement (MOE), School of Physics, Beijing Institute of Technology, Beijing, China. jdzhou@bit.edu.cn.
² State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, Frontiers Science Center for Nano-optoelectronics, and Collaborative Innovation Center of Quantum Matter, Peking University, Beijing, China.
³ Max Planck Institute of Microstructure Physics, Halle, Germany.
⁴ The Institute of Scientific and Industrial Research, Osaka University, Osaka, Japan.
⁵ Centre for Quantum Physics, Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement (MOE), School of Physics, Beijing Institute of Technology, Beijing, China.
⁶ School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore.
⁷ Advanced Research Institute of Multidisciplinary Science, and School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, China.
⁸ Department of Chemistry, National University of Singapore, Singapore, Singapore.
⁹ Institute of Physics, Chinese Academy of Sciences, Beijing, China.
¹⁰ Anhui Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory, HFIPS, Anhui, Chinese Academy of Sciences, Hefei, China.
¹¹ School of Materials Science and Engineering, Shanghai University, Shanghai, China.
¹² School of Integrated Circuits and Electronics, Beijing Institute of Technology, Beijing, China.
¹³ Beijing Key Laboratory for Magnetoelectric Materials and Devices, Beijing Innovation Center for Engineering Science and Advanced Technology, School of Materials Science and Engineering, Peking University, Beijing, China.
¹⁴ Centre for Quantum Physics, Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement (MOE), School of Physics, Beijing Institute of Technology, Beijing, China. ygyao@bit.edu.cn.
¹⁵ The Institute of Scientific and Industrial Research, Osaka University, Osaka, Japan. suenaga-kazu@sanken.osaka-u.ac.jp.
¹⁶ State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, Frontiers Science Center for Nano-optoelectronics, and Collaborative Innovation Center of Quantum Matter, Peking University, Beijing, China. xswu@pku.edu.cn.
¹⁷ Shenzhen Institute for Quantum Science and Engineering, Southern University of Science and Technology, Shenzhen, China. xswu@pku.edu.cn.
¹⁸ School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore. z.liu@ntu.edu.sg.
¹⁹ CINTRA CNRS/NTU/THALES, UMI 3288, Singapore, Singapore. z.liu@ntu.edu.sg.
²⁰ School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, Singapore. z.liu@ntu.edu.sg.

^# Contributed equally.

PMID: 36045238
DOI: 10.1038/s41586-022-05031-2

Abstract

Superlattices-a periodic stacking of two-dimensional layers of two or more materials-provide a versatile scheme for engineering materials with tailored properties^1,2. Here we report an intrinsic heterodimensional superlattice consisting of alternating layers of two-dimensional vanadium disulfide (VS₂) and a one-dimensional vanadium sulfide (VS) chain array, deposited directly by chemical vapour deposition. This unique superlattice features an unconventional 1T stacking with a monoclinic unit cell of VS₂/VS layers identified by scanning transmission electron microscopy. An unexpected Hall effect, persisting up to 380 kelvin, is observed when the magnetic field is in-plane, a condition under which the Hall effect usually vanishes. The observation of this effect is supported by theoretical calculations, and can be attributed to an unconventional anomalous Hall effect owing to an out-of-plane Berry curvature induced by an in-plane magnetic field, which is related to the one-dimensional VS chain. Our work expands the conventional understanding of superlattices and will stimulate the synthesis of more extraordinary superstructures.