Gate-Controlled Magnetic Phase Transition in a van der Waals Magnet Fe5GeTe2
文献类型:期刊论文
作者 | Tan, Cheng2; Xie, Wen-Qiang1; Zheng, Guolin2; Aloufi, Nuriyah2; Albarakati, Sultan2; Algarni, Meri2; Li, Junbo3; Partridge, James2; Culcer, Dimitrie4,5; Wang, Xiaolin6,7 |
刊名 | NANO LETTERS |
出版日期 | 2021-07-14 |
卷号 | 21 |
ISSN号 | 1530-6984 |
关键词 | Fe5GeTe2 van der Waals ferromagnetism magnetic phase transition solid protonic gating |
DOI | 10.1021/acs.nanolett.1c01108 |
通讯作者 | Zheng, Guolin(guolin.zheng@rmit.edu.au) ; Zhao, Yu-Jun(zhaoyj@scut.edu.cn) ; Wang, Lan(lan.wang@rmit.edu.au) |
英文摘要 | Magnetic van der Waals (vdW) materials are poised to enable all-electrical control of magnetism in the two-dimensional limit. However, tuning the magnetic ground state in vdW itinerant ferromagnets by voltage-induced charge doping remains a significant challenge, due to the extremely large carrier densities in these materials. Here, by cleaving the vdW itinerant ferromagnet Fe5GeTe2 (F5GT) into 5.4 nm (around two unit cells), we find that the ferromagnetism (FM) in F5GT can be substantially tuned by the thickness. Moreover, by utilizing a solid protonic gate, an electron doping concentration of above 10(21) cm(-3) has been exhibited in F5GT nanosheets. Such a high carrier accumulation exceeds that possible in widely used electric double-layer transistors (EDLTs) and surpasses the intrinsic carrier density of F5GT. Importantly, it is accompanied by a magnetic phase transition from FM to antiferromagnetism (AFM). The realization of an antiferromagnetic phase in nanosheet F5GT suggests the promise of applications in high-temperature antiferromagnetic vdW devices and heterostructures. |
WOS关键词 | FERROMAGNETISM |
资助项目 | Australian Research Council Centre of Excellence in Future Low-Energy Electronics Technologies[CE170100039] ; Natural Science Foundation of China[12074126] ; National Key Research and Development Program of China[2016YFA0300404] ; Fundamental Research Funds for the Central Universities[2020ZYGXZR076] ; Collaborative Innovation Program of Hefei Science Center, CAS[2019HSC-CIP007] ; High Magnetic Field Laboratory of Anhui Province |
WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
语种 | 英语 |
出版者 | AMER CHEMICAL SOC |
WOS记录号 | WOS:000674354200021 |
资助机构 | Australian Research Council Centre of Excellence in Future Low-Energy Electronics Technologies ; Natural Science Foundation of China ; National Key Research and Development Program of China ; Fundamental Research Funds for the Central Universities ; Collaborative Innovation Program of Hefei Science Center, CAS ; High Magnetic Field Laboratory of Anhui Province |
源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/123272] |
专题 | 中国科学院合肥物质科学研究院 |
通讯作者 | Zheng, Guolin; Zhao, Yu-Jun; Wang, Lan |
作者单位 | 1.South China Univ Technol, Dept Phys, Guangzhou 510640, Peoples R China 2.RMIT Univ, Sch Sci, Melbourne, Vic 3001, Australia 3.Chinese Acad Sci, Anhui Prov Key Lab Condensed Matter Phys Extreme, High Magnet Field Lab, Hefei 230031, Anhui, Peoples R China 4.Univ New South Wales, UNSW Node, Sch Phys, Sydney, NSW 2052, Australia 5.Univ New South Wales, UNSW Node, ARC Ctr Excellence Future Low Energy Elect Techno, Sydney, NSW 2052, Australia 6.Univ Wollongong, Inst Superconducting & Elect Mat, Australian Inst Innovat Mat, Wollongong, NSW 2500, Australia 7.Univ Wollongong, ARC Ctr Future Low Energy Elect Technol FLEET, Wollongong, NSW 2500, Australia 8.Univ Newcastle, Global Innovat Ctr Adv Nanomat, Sch Engn, Callaghan, NSW 2308, Australia 9.Anhui Univ, Sch Phys & Mat Sci, Dept Phys, Hefei 230601, Anhui, Peoples R China 10.Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Peoples R China |
推荐引用方式 GB/T 7714 | Tan, Cheng,Xie, Wen-Qiang,Zheng, Guolin,et al. Gate-Controlled Magnetic Phase Transition in a van der Waals Magnet Fe5GeTe2[J]. NANO LETTERS,2021,21. |
APA | Tan, Cheng.,Xie, Wen-Qiang.,Zheng, Guolin.,Aloufi, Nuriyah.,Albarakati, Sultan.,...&Wang, Lan.(2021).Gate-Controlled Magnetic Phase Transition in a van der Waals Magnet Fe5GeTe2.NANO LETTERS,21. |
MLA | Tan, Cheng,et al."Gate-Controlled Magnetic Phase Transition in a van der Waals Magnet Fe5GeTe2".NANO LETTERS 21(2021). |
入库方式: OAI收割
来源:合肥物质科学研究院
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