Interface engineering induced Dzyaloshinskii-Moriya interaction enhancement in Py/Ti/CoFeB/MgO heterostructures
Dzyaloshinskii-Moriya interaction (DMI) is a key driver of chiral magnetism and has garnered significant interest in applied magnetism and spintronics. Interface engineering has been demonstrated to effectively enhance the DMI in many traditional heterostructures. The regulation of DMI is highly dep...
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| Format: | Article |
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Frontiers Media S.A.
2025-05-01
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| Series: | Frontiers in Electronics |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/felec.2025.1608122/full |
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| author | Xiaoyue Song Zhiqiang Cao Ligang Bai Junbiao Zhao Junbiao Zhao Xudong Cai Dapeng Zhu Guodong Wei Guodong Wei |
| author_facet | Xiaoyue Song Zhiqiang Cao Ligang Bai Junbiao Zhao Junbiao Zhao Xudong Cai Dapeng Zhu Guodong Wei Guodong Wei |
| author_sort | Xiaoyue Song |
| collection | DOAJ |
| description | Dzyaloshinskii-Moriya interaction (DMI) is a key driver of chiral magnetism and has garnered significant interest in applied magnetism and spintronics. Interface engineering has been demonstrated to effectively enhance the DMI in many traditional heterostructures. The regulation of DMI is highly dependent on interface properties, which vary significantly across different material systems. Therefore, determining the optimal interface structure to maximize the DMI value presents a complex challenge. In this work, Brillouin light-scattering (BLS) spectroscopy quantitatively reveals a strong interfacial DMI of 17 μJ/m2 in Py/Ti (tTi)/CoFeB/MgO heterostructures with robust perpendicular magnetic anisotropy when the thickness of the Ti layer is 2 nm. Furthermore, we employed a field-modulated magneto-optical Kerr-effect microscope (MOKE) to visualize the existence of stable labyrinth domains in real space in the Py/Ti (2 nm)/CoFeB/MgO systems, which might be able to induce further skyrmions. By optimizing the thickness of a specific membrane configuration, this paper offers a critical materials foundation for advancing spintronics applications. |
| format | Article |
| id | doaj-art-8dddb07b70ed4aa6a176ba9c23d42c0c |
| institution | Kabale University |
| issn | 2673-5857 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Electronics |
| spelling | doaj-art-8dddb07b70ed4aa6a176ba9c23d42c0c2025-08-20T03:53:46ZengFrontiers Media S.A.Frontiers in Electronics2673-58572025-05-01610.3389/felec.2025.16081221608122Interface engineering induced Dzyaloshinskii-Moriya interaction enhancement in Py/Ti/CoFeB/MgO heterostructuresXiaoyue Song0Zhiqiang Cao1Ligang Bai2Junbiao Zhao3Junbiao Zhao4Xudong Cai5Dapeng Zhu6Guodong Wei7Guodong Wei8School of Integrated Circuit Science and Engineering, Fert Beijing Institute, Beihang University, Beijing, ChinaNational Key Laboratory of Spintronics, Hangzhou International Innovation Institute, Beihang University, Beijing, ChinaSchool of Integrated Circuit Science and Engineering, Fert Beijing Institute, Beihang University, Beijing, ChinaSchool of Integrated Circuit Science and Engineering, Fert Beijing Institute, Beihang University, Beijing, ChinaNational Key Laboratory of Spintronics, Hangzhou International Innovation Institute, Beihang University, Beijing, ChinaNational Key Laboratory of Spintronics, Hangzhou International Innovation Institute, Beihang University, Beijing, ChinaIntegrated Circuit and Intelligent Instruments Innovation Center,Qingdao Research Institute of Beihang University, Qingdao, ChinaSchool of Integrated Circuit Science and Engineering, Fert Beijing Institute, Beihang University, Beijing, ChinaNational Key Laboratory of Spintronics, Hangzhou International Innovation Institute, Beihang University, Beijing, ChinaDzyaloshinskii-Moriya interaction (DMI) is a key driver of chiral magnetism and has garnered significant interest in applied magnetism and spintronics. Interface engineering has been demonstrated to effectively enhance the DMI in many traditional heterostructures. The regulation of DMI is highly dependent on interface properties, which vary significantly across different material systems. Therefore, determining the optimal interface structure to maximize the DMI value presents a complex challenge. In this work, Brillouin light-scattering (BLS) spectroscopy quantitatively reveals a strong interfacial DMI of 17 μJ/m2 in Py/Ti (tTi)/CoFeB/MgO heterostructures with robust perpendicular magnetic anisotropy when the thickness of the Ti layer is 2 nm. Furthermore, we employed a field-modulated magneto-optical Kerr-effect microscope (MOKE) to visualize the existence of stable labyrinth domains in real space in the Py/Ti (2 nm)/CoFeB/MgO systems, which might be able to induce further skyrmions. By optimizing the thickness of a specific membrane configuration, this paper offers a critical materials foundation for advancing spintronics applications.https://www.frontiersin.org/articles/10.3389/felec.2025.1608122/fullinterface engineeringDzyaloshinskii-Moriya interactionheterostructuremagnetic materialsbrillouin light scatteringmagneto-optical kerr microscope |
| spellingShingle | Xiaoyue Song Zhiqiang Cao Ligang Bai Junbiao Zhao Junbiao Zhao Xudong Cai Dapeng Zhu Guodong Wei Guodong Wei Interface engineering induced Dzyaloshinskii-Moriya interaction enhancement in Py/Ti/CoFeB/MgO heterostructures Frontiers in Electronics interface engineering Dzyaloshinskii-Moriya interaction heterostructure magnetic materials brillouin light scattering magneto-optical kerr microscope |
| title | Interface engineering induced Dzyaloshinskii-Moriya interaction enhancement in Py/Ti/CoFeB/MgO heterostructures |
| title_full | Interface engineering induced Dzyaloshinskii-Moriya interaction enhancement in Py/Ti/CoFeB/MgO heterostructures |
| title_fullStr | Interface engineering induced Dzyaloshinskii-Moriya interaction enhancement in Py/Ti/CoFeB/MgO heterostructures |
| title_full_unstemmed | Interface engineering induced Dzyaloshinskii-Moriya interaction enhancement in Py/Ti/CoFeB/MgO heterostructures |
| title_short | Interface engineering induced Dzyaloshinskii-Moriya interaction enhancement in Py/Ti/CoFeB/MgO heterostructures |
| title_sort | interface engineering induced dzyaloshinskii moriya interaction enhancement in py ti cofeb mgo heterostructures |
| topic | interface engineering Dzyaloshinskii-Moriya interaction heterostructure magnetic materials brillouin light scattering magneto-optical kerr microscope |
| url | https://www.frontiersin.org/articles/10.3389/felec.2025.1608122/full |
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