journal article·2025-04Open access

Electrical Control of Magnetic Order Transition in 2D Antiferromagnetic Semiconductor FePS3

Mengjuan Mi, Qing Zhang, Shilei Wang, Xiandong Zhang, Han Xiao, Lixuan Yu, Houning Song, Chao Ma, Shuang Dai, Bingbing lyu, Jiyu Fan, Bing Shen, Fangsen Li, Yanxue Chen, Qing Zhang, Min Liu, Shanpeng Wang, Xiaohui Liu, Yilin Wang

Advanced Science· Volume 12· Issue 15

Abstract

Abstract Manipulating the magnetic order transition of 2D magnetic materials is an important way for the application of spintronic devices, and carrier concentration modulation is a commonly used effective regulation method. Here the magnetic ground state of FePS3 is tuned from antiferromagnetic (AFM) to ferrimagnetic (FIM) and back to AFM by electron doping, which is achieved via the intercalation of various organic cations. The doped FePS3 with FIM order exhibits a Curie temperature Tc of ≈110 K, a strong out‐of‐plane magnetic anisotropy, and particularly an unusual hysteresis loop, where with increasing temperature, the area of magnetic hysteresis loop increases below 50 K, then decreases above 50 K and eventually disappears. Theoretical calculations indicate that at a doping concentration of 0.3–0.9 electrons per cell, spin splitting of energy bands occurs, leading to the FIM order; whereas at a doping concentration of ≥ 1.0 electrons per cell, the AFM order recovers. Such AFM‐FIM‐AFM transition is ascribed to the competition between the Stoner exchange‐dominated FM order and super‐exchange‐dominated AFM order. These results demonstrate an effective approach to engineering magnetism in 2D magnetic materials by purely electrical means for future device applications.
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Research context

OpenAlex topics: 2D Materials and Applications · Graphene research and applications · MXene and MAX Phase Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Integrated Circuits Shandong Technology Center of Nanodevices and Integration State Key Laboratory of Crystal Materials Shandong University Jinan 250100 China

School of Physics Shandong University Jinan 250100 China

State Key Laboratory of Crystal Materials Institute of Crystal Materials Shandong University Jinan 250100 China

Shandong Wanbo Technologies Co., LTD Jinan 250100 China

Department of Applied Physics Nanjing University of Aeronautics and Astronautics Nanjing 210016 China

Center for Neutron Science and Technology and School of Physics Guangdong Provincial Key Laboratory of Magnetoelectric Physics and Devices, and Key Laboratory of Optoelectronic Materials and Technologies Sun Yat‐Sen University Guangzhou 510275 China

Vacuum Interconnected Nanotech Workstation Suzhou Institute of Nano‐Tech and Nano‐Bionics Chinese Academy of Sciences Suzhou 215123 China

School of Materials Science and Engineering Peking University Beijing 100871 China

Funding

Natural Science Foundation of Shandong Province · National Key Research and Development Program of China · National Natural Science Foundation of China · Basic and Applied Basic Research Foundation of Guangdong Province

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