Giant topological Hall effect around room temperature in noncollinear ferromagnet NdMn2Ge2 single crystal

doi:10.1063/5.0033379

IMR OpenIR

	Giant topological Hall effect around room temperature in noncollinear ferromagnet NdMn2Ge2 single crystal
	Zheng, Xianming 1,2,3; Zhao, Xuanwei 1,2,3; Qi, Ji 4,5; Luo, Xiaohua 1,2; Ma, Shengcan 1,2; Chen, Changcai 1,2; Zeng, Hai 1,2,3; Yu, Guang 1,2,3; Fang, Nao 3; Rehman, Sajjad Ur 1; Ren, Weijun 4; Li, Bing 4; Zhong, Zhenchen 1
通讯作者	Luo, Xiaohua(xhluo11s@alum.imr.ac.cn) ; Ma, Shengcan(shengcanma801@gmail.com)
	2021-02-15
发表期刊	APPLIED PHYSICS LETTERS
ISSN	0003-6951
卷号	118 期号:7 页码:6
摘要	We report the observation of the giant topological Hall effect near room temperature in a complex noncollinear ferromagnet NdMn2Ge2 single crystal. Three successive magnetic transitions are observed below 400K, including a spin reorientation transition at T-SR=215K. The complex noncollinear magnetic structures give rise to anomalous transport behaviors. When the current flows along the a axis and the magnetic field is applied along the c axis, the anomalous Hall effect is observed, which is found to be dominated by the skew scattering mechanism. Strikingly, a giant topological Hall effect appears in a wide temperature range, which stems from the noncollinear spin configuration with finite scalar spin chirality. The topological Hall resistivity reaches the maximum of -1.35 mu Omega cm at 300K and drops slightly with temperature until below T-SR. These results suggest that the NdMn2Ge2 single crystal would be a promising topological material for spintronic applications at room temperature.
资助者	Natural Science Foundation of Jiangxi Province ; National Natural Science Foundation of China ; Leading Talents Program of Jiangxi Provincial Major Discipline Academic and Technical Leaders Training Program ; Key Project of Natural Science Foundation of Jiangxi Province ; Graduate Student Innovation Special Funds Project of Jiangxi Province
DOI	10.1063/5.0033379
收录类别	SCI
语种	英语
资助项目	Natural Science Foundation of Jiangxi Province[20202BAB214002] ; National Natural Science Foundation of China[52061014] ; National Natural Science Foundation of China[52071323] ; National Natural Science Foundation of China[51671097] ; Leading Talents Program of Jiangxi Provincial Major Discipline Academic and Technical Leaders Training Program[20204BCJ22004] ; Key Project of Natural Science Foundation of Jiangxi Province[20192ACB20004] ; Graduate Student Innovation Special Funds Project of Jiangxi Province[6720190303]
WOS研究方向	Physics
WOS类目	Physics, Applied
WOS记录号	WOS:000630421500002
出版者	AMER INST PHYSICS
引用统计	被引频次：25[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/161363
专题	中国科学院金属研究所
通讯作者	Luo, Xiaohua; Ma, Shengcan
作者单位	1.Jiangxi Univ Sci & Technol, Coll Rare Earths, Jiangxi Key Lab Rare Earth Magnet Mat & Devices, Ganzhou 341000, Peoples R China 2.Jiangxi Univ Sci & Technol, Ganzhou Key Lab Rare Earth Magnet Funct Mat & Phy, Coll Rare Earths, Ganzhou 341000, Peoples R China 3.Jiangxi Univ Sci & Technol, Sch Mat Sci & Engn, Fac Mat Met & Chem, Ganzhou 341000, Peoples R China 4.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China 5.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Xianming,Zhao, Xuanwei,Qi, Ji,et al. Giant topological Hall effect around room temperature in noncollinear ferromagnet NdMn2Ge2 single crystal[J]. APPLIED PHYSICS LETTERS,2021,118(7):6.
APA	Zheng, Xianming.,Zhao, Xuanwei.,Qi, Ji.,Luo, Xiaohua.,Ma, Shengcan.,...&Zhong, Zhenchen.(2021).Giant topological Hall effect around room temperature in noncollinear ferromagnet NdMn2Ge2 single crystal.APPLIED PHYSICS LETTERS,118(7),6.
MLA	Zheng, Xianming,et al."Giant topological Hall effect around room temperature in noncollinear ferromagnet NdMn2Ge2 single crystal".APPLIED PHYSICS LETTERS 118.7(2021):6.