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

文献类型：期刊论文

作者Zheng, Xianming1,2,3; Zhao, Xuanwei1,2,3; Qi, Ji4,5; Luo, Xiaohua1,2; Ma, Shengcan1,2; Chen, Changcai1,2; Zeng, Hai1,2,3; Yu, Guang1,2,3; Fang, Nao3; Rehman, Sajjad Ur1
刊名APPLIED PHYSICS LETTERS
出版日期2021-02-15
卷号118期号:7页码:6
ISSN号0003-6951
DOI10.1063/5.0033379
通讯作者Luo, Xiaohua(xhluo11s@alum.imr.ac.cn) ; Ma, Shengcan(shengcanma801@gmail.com)
英文摘要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
语种英语
出版者AMER INST PHYSICS
WOS记录号WOS:000630421500002
资助机构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
源URL[http://ir.imr.ac.cn/handle/321006/161362]  
专题金属研究所_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.

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来源：金属研究所

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