Tailoring Dzyaloshinskii-Moriya Interaction and Spin-Hall Topological Hall Effect in Insulating Magnetic Oxides by Interface Engineering

Xu, Zedong1; Zhu, Yuanmin2; Wang, Yuming3; Li, Xiaowen3; Liu, Qi3; Chen, Kai4; Wang, Junling3; Jiang, Yong1; Chen, Lang3

2024-07-01

10.1002/advs.202403852

ADVANCED SCIENCE   影响因子和分区

2198-3844

["Chiral spin textures, as exotic phases in magnetic materials, hold immense promise for revolutionizing logic, and memory applications. Recently, chiral spin textures have been observed in centrosymmetric magnetic insulators (FMI), due to an interfacial Dzyaloshinskii-Moriya interaction (iDMI). However, the source and origin of this iDMI remain enigmatic in magnetic insulator systems. Here, the source and origin of the iDMI in Pt/Y3Fe5O12 (YIG)/substrate structures are deeply delved by examining the spin-Hall topological Hall effect (SH-THE), an indication of chiral spin textures formed due to an iDMI. Through carefully modifying the interfacial chemical composition of Pt/YIG/substrate with a nonmagnetic Al3+ doping, the obvious dependence of SH-THE on the interfacial chemical composition for both the heavy metal (HM)/FMI and FMI/substrate interfaces is observed. The results reveal that both interfaces contribute to the strength of the iDMI, and the iDMI arises due to strong spin-orbit coupling and inversion symmetry breaking at both interfaces in HM/FMI/substrate. Importantly, it is shown that nonmagnetic substitution and interface engineering can significantly tune the SH-THE and iDMI in ferrimagnetic iron garnets. The approach offers a viable route to tailor the iDMI and associated chiral spin textures in low-damping insulating magnetic oxides, thus advancing the field of spintronics.","The interfacial Dzyaloshinskii-Moriya interaction (iDMI) is the primary driver of chiral spin textures in centrosymmetric magnetic insulators (FMI). However, the source and origin of the iDMI remain enigmatic. The experiments provide robust evidence that both the interface contributes to iDMI in HM/FMI/substrate system and the iDMI can be fine-tuned through interface engineering and nonmagnetic element doping in ferrimagnetic iron garnets. image"]

chiral spin textures interface engineering interfacial Dzyaloshinskii-Moriya interaction low-damping insulating magnetic oxides spin-Hall topological Hall effect

SCI ; EI

英语

通讯

National Natural Science Foundation of China[52271186] ; National Key R&D Program of China["2022YFA1204000","2022YFA1402600","2022YFA1402903"] ; Guangdong Provincial Key Laboratory Program[2021B1212040001]

Chemistry ; Science & Technology - Other Topics ; Materials Science

Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:001268236000001

WILEY

Web of Science

1.Tiangong Univ, Inst Quantum Mat & Devices, Sch Elect & Informat Engn, Tianjin 300387, Peoples R China
2.Dongguan Univ Technol, Sch Mat Sci & Engn, Dongguan 523808, Peoples R China
3.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China
4.Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230026, Peoples R China

Xu, Zedong,Zhu, Yuanmin,Wang, Yuming,et al. Tailoring Dzyaloshinskii-Moriya Interaction and Spin-Hall Topological Hall Effect in Insulating Magnetic Oxides by Interface Engineering[J]. ADVANCED SCIENCE,2024.

Xu, Zedong.,Zhu, Yuanmin.,Wang, Yuming.,Li, Xiaowen.,Liu, Qi.,...&Chen, Lang.(2024).Tailoring Dzyaloshinskii-Moriya Interaction and Spin-Hall Topological Hall Effect in Insulating Magnetic Oxides by Interface Engineering.ADVANCED SCIENCE.

Xu, Zedong,et al."Tailoring Dzyaloshinskii-Moriya Interaction and Spin-Hall Topological Hall Effect in Insulating Magnetic Oxides by Interface Engineering".ADVANCED SCIENCE (2024).