BRIEF RESEARCH REPORT article
Front. Electron.
Sec. Integrated Circuits and VLSI
Volume 6 - 2025 | doi: 10.3389/felec.2025.1608122
This article is part of the Research TopicInnovations in Spintronic Technology for Enhanced Computing PerformanceView all articles
Interface Engineering Induced Dzyaloshinskii-Moriya Interaction Enhancement in Py/Ti/CoFeB/MgO Heterostructures
Provisionally accepted
- Beihang University, Beijing, China
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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.
Keywords: interface engineering, Dzyaloshinskii-Moriya interaction, heterostructure, magnetic materials, Brillouin light scattering, magneto-optical Kerr microscope
Received: 08 Apr 2025; Accepted: 06 May 2025.
Copyright: © 2025 Wei, 宋, Cao, Bai, Zhao, Cai and Zhu. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Guodong Wei, Beihang University, Beijing, China
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