Room-temperature van der Waals perpendicular ferromagnet through interlayer magnetic coupling
| العنوان: | Room-temperature van der Waals perpendicular ferromagnet through interlayer magnetic coupling |
|---|---|
| المؤلفون: | Yi Cao, Xiaomin Zhang, Xian-Peng Zhang, Faguang Yan, Ziao Wang, Wenkai Zhu, Hao Tan, Vitaly N. Golovach, Houzhi Zheng, Kaiyou Wang |
| المساهمون: | National Key Research and Development Program (China), Beijing Institute of Technology, National Natural Science Foundation of China, Swiss National Science Foundation, Chinese Academy of Sciences, Agencia Estatal de Investigación (España), Ministerio de Ciencia, Innovación y Universidades (España) |
| بيانات النشر: | American Physical Society, 2022. |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | General Physics and Astronomy |
| الوصف: | Ferromagnetic van der Waals (vdW) crystals are promising for future spintronics because they hold huge potential in terms of tunable chemical, mechanical, and physical properties. However, room-temperature vdW ferromagnets with high-quality perpendicular magnetic anisotropy (PMA) are still elusive, limiting their practical implementations for spintronic applications, such as nonvolatile memories. Here, we show that the magnetic properties of vdW Fe3GeTe2, including the Curie temperature and the PMA, can be tuned by interlayer exchange coupling (IEC). We demonstrate strong ferromagnetic and antiferromagnetic IECs between sputtered Co and vdW Fe3GeTe2 with Pt and Ru spacer layers, respectively. We find that ferromagnetic IEC enhances the Curie temperature of Fe3GeTe2 while maintaining PMA, which can exhibit 100% out-of-plane remanent magnetization above room temperature. On the other hand, antiferromagnetic coupling weakens the PMA, resulting in a multilevel magnetic hysteresis loop of Fe3GeTe2 even at temperatures as small as 10 K. These interlayered coupled 3D/2D heterostructures could emerge as prime candidates for practical vdW spintronic applications. This work is supported by the National Key R&D Program of China (Grant No. 2017YFA0303400), Beijing Natural Science Foundation Key Program (Grant No. Z190007), National Natural Science Foundation of China (Grants No. 62104018, No. 11474272, and No. 61774144), Chinese Academy of Sciences (Grants No. QYZDY-SSW-JSC020, No. XDB44000000, and No. XDB28000000), Beijing Natural Science Foundation (Grant No. 2212048), Swiss National Science Foundation and NCCR SPIN, and the Spanish Ministerio de Ciencia, Innovación y Universidades (MICINN)throughProject PID2020-114252GB-I00 (SPIRIT). |
| وصف الملف: | application/pdf |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b855ac410b4ea98771885633988ed9a5 http://hdl.handle.net/10261/284574 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi.dedup.....b855ac410b4ea98771885633988ed9a5 |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |