Strong anisotropic Hall effect in single-crystalline CeMn2Ge2 with helical spin order

doi:10.1103/PhysRevB.105.075108

HFCAS OpenIR

	Strong anisotropic Hall effect in single-crystalline CeMn2Ge2 with helical spin order
	Xu, Longmeng 1,2; Bai, Yuming 1,2; Gong, Gaoshang 3; Song, Fangyuan 1,2; Li, Zhaohu 1,2; Han, Yuyan4 ; Ling, Langsheng4 ; Tian, Zhaoming 1,2,5
	2022-02-03
发表期刊	PHYSICAL REVIEW B
ISSN	2469-9950
通讯作者	Tian, Zhaoming(tianzhaoming@hust.edu.cn)
摘要	The topological Hall effect (THE) is an emergent magnetotransport phenomena in noncollinear itinerant magnets, and has been extensively studied in magnetic materials hosting skyrmion lattices and geometrically frustrated lattices. To explore THE in materials with new nontrivial spin textures, we investigate the anisotropic Hall effect in a longitudinal conical-ordered magnet CeMn2Ge2 crystallized in ThCr2Si2-type structure, which has a spiral magnetic propagation vector along the c axis and a helical component in the ab plane. Magnetic susceptibility reveals it undergoes two magnetic transitions at similar to 394 and similar to 318 K; the latter corresponds to the antiferromagnetic to conical spin order transition in the magnetic Mn lattices. For applied field (mu H-0) along the c axis, CeMn2Ge2 exhibits conventional anomalous Hall effect with large intrinsic Hall conductivity sigma(int)(xy) similar to 276 Omega(-1) cm(-1) but no THE responses. A large THE is realized as mu H-0 is oriented within the ab plane xy due to a field-induced noncoplanar spin texture with scalar spin chirality. Moreover, room temperature (RT) angle-dependent Hall effect measurements reveal the THE emerges when the field is applied nonparallel to the c axis and it reaches maximal value for mu H-0 when it is tilted close to the ab plane with a canting angle of similar to 15 degrees, at which large topological Hall conductivity of similar to 43 Omega(-1) cm(-1) is detected. Our results demonstrate a RT anisotropic THE and its tunability by the application of a tilted magnetic field in conical-ordered magnets, making a step forward for designing spintronic devices based on THE.
DOI	10.1103/PhysRevB.105.075108
关键词[WOS]	BERRY PHASE ; NEUTRON-DIFFRACTION ; LATTICE
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[11874158] ; Fundamental Research Funds for the Central Universities[2019KFYXKJC008]
项目资助者	National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000752805300001
出版者	AMER PHYSICAL SOC
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/127462
专题	中国科学院合肥物质科学研究院
通讯作者	Tian, Zhaoming
作者单位	1.Huazhong Univ Sci & Technol, Wuhan Natl High Magnet Field Ctr, Wuhan 430074, Peoples R China 2.Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China 3.Zhengzhou Univ Light Ind, Sch Phys & Elect Engn, Zhengzhou 450002, Peoples R China 4.Chinese Acad Sci, High Magnet Field Lab, Anhui Prov Key Lab Condensed Matter Phys Extreme, Hefei 230031, Peoples R China 5.Shenzhen Huazhong Univ Sci & Technol, Res Inst, Shenzhen 518057, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Xu, Longmeng,Bai, Yuming,Gong, Gaoshang,et al. Strong anisotropic Hall effect in single-crystalline CeMn2Ge2 with helical spin order[J]. PHYSICAL REVIEW B,2022,105.
APA	Xu, Longmeng.,Bai, Yuming.,Gong, Gaoshang.,Song, Fangyuan.,Li, Zhaohu.,...&Tian, Zhaoming.(2022).Strong anisotropic Hall effect in single-crystalline CeMn2Ge2 with helical spin order.PHYSICAL REVIEW B,105.
MLA	Xu, Longmeng,et al."Strong anisotropic Hall effect in single-crystalline CeMn2Ge2 with helical spin order".PHYSICAL REVIEW B 105(2022).