Magnetic two-dimensional (2D) materials have garnered significant attention due to their unique electronic, magnetic, and optical properties and their potential applications in next-generation electronic and optoelectronic devices. However, the magneto-optical effects of oligolayer antiferromagnetic materials remain inadequately understood. Here, we investigate the magnetic properties of few-layer nickel phosphorus trisulfide (NiPS3) and its twisted heterostructures, emphasizing the observation of optical phenomena at low temperatures (1.65 K). By stacking few-layer NiPS3 to fabricate twisted homostructures, we probe their magnetic characteristics using photoluminescence (PL) spectroscopy. Our results reveal that sharp exciton peaks emerge at low temperatures and that the spin chain orientation in oligolayer NiPS3 can be discerned through the polarization dependence of exciton PL intensity. Notably, fewer-layered NiPS3 exhibits a significant magneto-optical effect under an applied magnetic field, allowing the modulation of the polarization angle of its exciton PL spectrum. Additionally, the polarization-dependent Raman spectrum of NiPS3 shows substantial changes under the influence of a magnetic field. These findings underscore the potential of few-layer NiPS3 for future magneto-optical device applications.
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9 September 2024
Research Article|
September 09 2024
Spin chain orientation and magneto-optical coupling in twisted NiPS3 homostructures
Junying Chen
;
Junying Chen
(Formal analysis, Investigation, Methodology, Writing – original draft)
1
Institute of Quantum Physics, School of Physics, Central South University
, 932 South Lushan Road, Changsha, Hunan 410083, People's Republic of China
2
State Key Laboratory of Precision Manufacturing for Extreme Service Performance, Central South University
, 932 South Lushan Road, Changsha, Hunan 410083, People's Republic of China
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Xing Xie
;
Xing Xie
(Formal analysis, Resources)
1
Institute of Quantum Physics, School of Physics, Central South University
, 932 South Lushan Road, Changsha, Hunan 410083, People's Republic of China
2
State Key Laboratory of Precision Manufacturing for Extreme Service Performance, Central South University
, 932 South Lushan Road, Changsha, Hunan 410083, People's Republic of China
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Xinyu Oyang;
Xinyu Oyang
(Investigation, Methodology)
2
State Key Laboratory of Precision Manufacturing for Extreme Service Performance, Central South University
, 932 South Lushan Road, Changsha, Hunan 410083, People's Republic of China
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Junnan Ding;
Junnan Ding
(Formal analysis, Resources)
1
Institute of Quantum Physics, School of Physics, Central South University
, 932 South Lushan Road, Changsha, Hunan 410083, People's Republic of China
2
State Key Laboratory of Precision Manufacturing for Extreme Service Performance, Central South University
, 932 South Lushan Road, Changsha, Hunan 410083, People's Republic of China
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Fangping Ouyang;
Fangping Ouyang
(Resources)
1
Institute of Quantum Physics, School of Physics, Central South University
, 932 South Lushan Road, Changsha, Hunan 410083, People's Republic of China
3
School of Physics and Technology, State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, Xinjiang University
, Urumqi 830046, People's Republic of China
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Zongwen Liu
;
Zongwen Liu
(Formal analysis, Methodology)
4
School of Chemical and Biomolecular Engineering, The University of Sydney
, Sydney, New South Wales 2006, Australia
5
The University of Sydney Nano Institute, The University of Sydney
, Sydney, New South Wales 2006, Australia
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Jian-Tao Wang;
Jian-Tao Wang
(Methodology, Resources)
6
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences
, Beijing 100190, People's Republic of China
7
School of Physical Sciences, University of Chinese Academy of Sciences
, Beijing 100049, People's Republic of China
8
Songshan Lake Materials Laboratory
, Dongguan, Guangdong 523808, People's Republic of China
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Jun He
;
Jun He
(Funding acquisition, Methodology)
1
Institute of Quantum Physics, School of Physics, Central South University
, 932 South Lushan Road, Changsha, Hunan 410083, People's Republic of China
2
State Key Laboratory of Precision Manufacturing for Extreme Service Performance, Central South University
, 932 South Lushan Road, Changsha, Hunan 410083, People's Republic of China
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Yanping Liu
Yanping Liu
a)
(Conceptualization, Writing – original draft, Writing – review & editing)
1
Institute of Quantum Physics, School of Physics, Central South University
, 932 South Lushan Road, Changsha, Hunan 410083, People's Republic of China
2
State Key Laboratory of Precision Manufacturing for Extreme Service Performance, Central South University
, 932 South Lushan Road, Changsha, Hunan 410083, People's Republic of China
a)Author to whom correspondence should be addressed: liuyanping@csu.edu.cn
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a)Author to whom correspondence should be addressed: liuyanping@csu.edu.cn
Appl. Phys. Lett. 125, 113102 (2024)
Article history
Received:
June 18 2024
Accepted:
July 30 2024
Citation
Junying Chen, Xing Xie, Xinyu Oyang, Junnan Ding, Fangping Ouyang, Zongwen Liu, Jian-Tao Wang, Jun He, Yanping Liu; Spin chain orientation and magneto-optical coupling in twisted NiPS3 homostructures. Appl. Phys. Lett. 9 September 2024; 125 (11): 113102. https://doi.org/10.1063/5.0223945
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