Two-Dimensional Ultrathin Fe3Sn2 Kagome Metal with Defect-Dependent Magnetic PropertyClick to copy article linkArticle link copied!
- Manli ZhuManli ZhuHunan Provincial Key Laboratory of Two-Dimensional Materials, State Key Laboratory for Chemo/Biosensing and Chemometrics, Advanced Semiconductor Technology and Application Engineering Research Center of Ministry of Education of China, Changsha Semiconductor Technology and Application Innovation Research Institute, School of Physics and Electronics, College of Semiconductors (College of Integrated Circuits), Hunan University, Changsha 410082, People’s Republic of ChinaHunan Provincial Key Laboratory of Two-Dimensional Materials, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People’s Republic of ChinaMore by Manli Zhu
- Qiuqiu LiQiuqiu LiHunan Provincial Key Laboratory of Two-Dimensional Materials, State Key Laboratory for Chemo/Biosensing and Chemometrics, Advanced Semiconductor Technology and Application Engineering Research Center of Ministry of Education of China, Changsha Semiconductor Technology and Application Innovation Research Institute, School of Physics and Electronics, College of Semiconductors (College of Integrated Circuits), Hunan University, Changsha 410082, People’s Republic of ChinaMore by Qiuqiu Li
- Kaiwen GuoKaiwen GuoHunan Provincial Key Laboratory of Two-Dimensional Materials, State Key Laboratory for Chemo/Biosensing and Chemometrics, Advanced Semiconductor Technology and Application Engineering Research Center of Ministry of Education of China, Changsha Semiconductor Technology and Application Innovation Research Institute, School of Physics and Electronics, College of Semiconductors (College of Integrated Circuits), Hunan University, Changsha 410082, People’s Republic of ChinaMore by Kaiwen Guo
- Bailian ChenBailian ChenSchool of Design, Hunan University, Changsha 410082, People’s Republic of ChinaMore by Bailian Chen
- Kun HeKun HeHunan Provincial Key Laboratory of Two-Dimensional Materials, State Key Laboratory for Chemo/Biosensing and Chemometrics, Advanced Semiconductor Technology and Application Engineering Research Center of Ministry of Education of China, Changsha Semiconductor Technology and Application Innovation Research Institute, School of Physics and Electronics, College of Semiconductors (College of Integrated Circuits), Hunan University, Changsha 410082, People’s Republic of ChinaMore by Kun He
- Chen YiChen YiHunan Provincial Key Laboratory of Two-Dimensional Materials, State Key Laboratory for Chemo/Biosensing and Chemometrics, Advanced Semiconductor Technology and Application Engineering Research Center of Ministry of Education of China, Changsha Semiconductor Technology and Application Innovation Research Institute, School of Physics and Electronics, College of Semiconductors (College of Integrated Circuits), Hunan University, Changsha 410082, People’s Republic of ChinaMore by Chen Yi
- Ping LuPing LuHunan Provincial Key Laboratory of Two-Dimensional Materials, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People’s Republic of ChinaMore by Ping Lu
- Xingyun LiXingyun LiDongGuan Institute of GuangDong Institute of Metrology, Dongguan 523343, People’s Republic of ChinaMore by Xingyun Li
- Jiwu LuJiwu LuSchool of Design, Hunan University, Changsha 410082, People’s Republic of ChinaMore by Jiwu Lu
- Jia LiJia LiHunan Provincial Key Laboratory of Two-Dimensional Materials, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People’s Republic of ChinaMore by Jia Li
- Ruixia WuRuixia WuHunan Provincial Key Laboratory of Two-Dimensional Materials, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People’s Republic of ChinaMore by Ruixia Wu
- Xingqiang LiuXingqiang LiuHunan Provincial Key Laboratory of Two-Dimensional Materials, State Key Laboratory for Chemo/Biosensing and Chemometrics, Advanced Semiconductor Technology and Application Engineering Research Center of Ministry of Education of China, Changsha Semiconductor Technology and Application Innovation Research Institute, School of Physics and Electronics, College of Semiconductors (College of Integrated Circuits), Hunan University, Changsha 410082, People’s Republic of ChinaMore by Xingqiang Liu
- Yuan LiuYuan LiuHunan Provincial Key Laboratory of Two-Dimensional Materials, State Key Laboratory for Chemo/Biosensing and Chemometrics, Advanced Semiconductor Technology and Application Engineering Research Center of Ministry of Education of China, Changsha Semiconductor Technology and Application Innovation Research Institute, School of Physics and Electronics, College of Semiconductors (College of Integrated Circuits), Hunan University, Changsha 410082, People’s Republic of ChinaMore by Yuan Liu
- Lei LiaoLei LiaoHunan Provincial Key Laboratory of Two-Dimensional Materials, State Key Laboratory for Chemo/Biosensing and Chemometrics, Advanced Semiconductor Technology and Application Engineering Research Center of Ministry of Education of China, Changsha Semiconductor Technology and Application Innovation Research Institute, School of Physics and Electronics, College of Semiconductors (College of Integrated Circuits), Hunan University, Changsha 410082, People’s Republic of ChinaMore by Lei Liao
- Bo Li*Bo Li*Email for B.L.: [email protected]Hunan Provincial Key Laboratory of Two-Dimensional Materials, State Key Laboratory for Chemo/Biosensing and Chemometrics, Advanced Semiconductor Technology and Application Engineering Research Center of Ministry of Education of China, Changsha Semiconductor Technology and Application Innovation Research Institute, School of Physics and Electronics, College of Semiconductors (College of Integrated Circuits), Hunan University, Changsha 410082, People’s Republic of ChinaShenzhen Research Institute of Hunan University, Shenzhen 518063, People’s Republic of ChinaMore by Bo Li
- Xidong Duan*Xidong Duan*Email for X.D.: [email protected]Hunan Provincial Key Laboratory of Two-Dimensional Materials, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People’s Republic of ChinaMore by Xidong Duan
Abstract
Two-dimensional (2D) Fe3Sn2, which is a room-temperature ferromagnetic kagome metal, has potential applications in spintronic devices. However, the systematic synthesis and magnetic study of 2D Fe3Sn2 single crystals have rarely been reported. Here we have synthesized 2D hexagonal and triangular Fe3Sn2 nanosheets by controlling the amount of FeCl2 precursors in the chemical vapor deposition (CVD) method. It is found that the hexagonal Fe3Sn2 nanosheets exist with Fe vacancy defects and show no obvious coercivity. While the triangular Fe3Sn2 nanosheet has obvious hysteresis loops at room temperature, its coercivity first increases and then remains stable with an increase in temperature, which should result from the competition of the thermal activation mechanism and spin direction rotation mechanism. A first-principles calculation study shows that the Fe vacancy defects in Fe3Sn2 can increase the distances between Fe atoms and weaken the ferromagnetism of Fe3Sn2. The resulting 2D Fe3Sn2 nanosheets provide a new choice for spintronic devices.
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