TY - JOUR
T1 - Heterodimensional superlattice with in-plane anomalous Hall effect
AU - Zhou, Jiadong
AU - Zhang, Wenjie
AU - Lin, Yung Chang
AU - Cao, Jin
AU - Zhou, Yao
AU - Jiang, Wei
AU - Du, Huifang
AU - Tang, Bijun
AU - Shi, Jia
AU - Jiang, Bingyan
AU - Cao, Xun
AU - Lin, Bo
AU - Fu, Qundong
AU - Zhu, Chao
AU - Guo, Wei
AU - Huang, Yizhong
AU - Yao, Yuan
AU - Parkin, Stuart S.P.
AU - Zhou, Jianhui
AU - Gao, Yanfeng
AU - Wang, Yeliang
AU - Hou, Yanglong
AU - Yao, Yugui
AU - Suenaga, Kazu
AU - Wu, Xiaosong
AU - Liu, Zheng
N1 - Publisher Copyright:
© 2022, The Author(s), under exclusive licence to Springer Nature Limited.
PY - 2022/9/1
Y1 - 2022/9/1
N2 - Superlattices—a periodic stacking of two-dimensional layers of two or more materials—provide a versatile scheme for engineering materials with tailored properties1,2. 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.
AB - Superlattices—a periodic stacking of two-dimensional layers of two or more materials—provide a versatile scheme for engineering materials with tailored properties1,2. 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.
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U2 - 10.1038/s41586-022-05031-2
DO - 10.1038/s41586-022-05031-2
M3 - Article
C2 - 36045238
AN - SCOPUS:85137040017
SN - 0028-0836
VL - 609
SP - 46
EP - 51
JO - Nature
JF - Nature
IS - 7925
ER -