Gate-Tuned Interlayer Coupling in van der Waals Ferromagnet Fe3GeTe2 Nanoflakes

doi:10.1103/PhysRevLett.125.047202

	Gate-Tuned Interlayer Coupling in van der Waals Ferromagnet Fe3GeTe2 Nanoflakes
	Zheng, Guolin 2; Xie, Wen-Qiang 3; Albarakati, Sultan 2; Algarni, Meri 2; Tan, Cheng 2; Wang, Yihao 3; Peng, Jingyang 2; Partridge, James 2; Farrar, Lawrence 2; Yi, Jiabao 5
刊名	PHYSICAL REVIEW LETTERS
	2020-07-22
卷号	125
ISSN号	0031-9007
DOI	10.1103/PhysRevLett.125.047202
通讯作者	Zhao, Yu-Jun(zhaoyj@scut.edu.cn) ; Wang, Lan(lan.wang@rmit.edu.au)
英文摘要	The weak interlayer coupling in van der Waals (vdW) magnets has confined their application to two dimensional (2D) spintronic devices. Here, we demonstrate that the interlayer coupling in a vdW magnet Fe3GeTe2 (FGT) can be largely modulated by a protonic gate. With the increase of the protons intercalated among vdW layers, interlayer magnetic coupling increases. Because of the existence of antiferromagnetic layers in FGT nanoflakes, the increasing interlayer magnetic coupling induces exchange bias in protonated FGT nanoflakes. Most strikingly, a rarely seen zero-field cooled (ZFC) exchange bias with very large values (maximally up to 1.2 kOe) has been observed when higher positive voltages (V-g >= 4.36 V) are applied to the protonic gate, which clearly demonstrates that a strong interlayer coupling is realized by proton intercalation. Such strong interlayer coupling will enable a wider range of applications for vdW magnets.
资助项目	Australia Research Council Centre of Excellence in Future Low-Energy Electronics Technologies[CE170100039] ; NSFC[11574088] ; NSFC[51621001]
WOS关键词	EXCHANGE BIAS ; OXYGEN REDUCTION ; ENERGIES
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000551007800008
资助机构	Australia Research Council Centre of Excellence in Future Low-Energy Electronics Technologies ; NSFC
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/102943]
专题	中国科学院合肥物质科学研究院
通讯作者	Zhao, Yu-Jun; Wang, Lan
作者单位	1.Anhui Univ, Sch Phys & Mat Sci, Dept Phys, Hefei 230601, Anhui, Peoples R China 2.RMIT Univ, Sch Sci, Melbourne, Vic 3001, Australia 3.South China Univ Technol, Dept Phys, Guangzhou 510640, Peoples R China 4.Chinese Acad Sci, High Magnet Field Lab, Anhui Prov Key Lab Condensed Matter Phys Extreme, Hefei 230031, Anhui, Peoples R China 5.Univ Newcastle, Global Innovat Ctr Adv Nanomat, Sch Engn, Callaghan, NSW 2308, Australia 6.Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Guolin,Xie, Wen-Qiang,Albarakati, Sultan,et al. Gate-Tuned Interlayer Coupling in van der Waals Ferromagnet Fe3GeTe2 Nanoflakes[J]. PHYSICAL REVIEW LETTERS,2020,125.
APA	Zheng, Guolin.,Xie, Wen-Qiang.,Albarakati, Sultan.,Algarni, Meri.,Tan, Cheng.,...&Wang, Lan.(2020).Gate-Tuned Interlayer Coupling in van der Waals Ferromagnet Fe3GeTe2 Nanoflakes.PHYSICAL REVIEW LETTERS,125.
MLA	Zheng, Guolin,et al."Gate-Tuned Interlayer Coupling in van der Waals Ferromagnet Fe3GeTe2 Nanoflakes".PHYSICAL REVIEW LETTERS 125(2020).