Orbital torque switching of perpendicular magnetization in light metal/ferrimagnet bilayers
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866910630832766976 |
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| author | Xu, Teng Tang, Aihua Wang, Kang Liu, Yizhou Du, Haifeng |
| author_facet | Xu, Teng Tang, Aihua Wang, Kang Liu, Yizhou Du, Haifeng |
| contents | Orbital torque, associated with orbital current, enables light metals to efficiently manipulate magnetization with rich tunability. A clear demonstration of perpendicular magnetization switching using light metals alone is essential for understanding orbital physics and developing high-density orbitronic devices. Here, we report orbital torque switching of perpendicular magnetization in light metal (Ti, V, Cr)/ferrimagnet (Fe1-xGdx) bilayers. Taking the Ti/ Fe1-xGdx sample as a model system, the torque efficiency increases four-fold by enhancing the spin-orbit coupling in Fe1-xGdx through modulating Gd composition, which is a characteristic feature of orbital torque. Our findings demonstrate that light metals in combination with rare earth-transition metal ferrimagnets can be employed for efficient orbitronic devices and serve as a model system for studying orbitronics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_02238 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Orbital torque switching of perpendicular magnetization in light metal/ferrimagnet bilayers Xu, Teng Tang, Aihua Wang, Kang Liu, Yizhou Du, Haifeng Materials Science Orbital torque, associated with orbital current, enables light metals to efficiently manipulate magnetization with rich tunability. A clear demonstration of perpendicular magnetization switching using light metals alone is essential for understanding orbital physics and developing high-density orbitronic devices. Here, we report orbital torque switching of perpendicular magnetization in light metal (Ti, V, Cr)/ferrimagnet (Fe1-xGdx) bilayers. Taking the Ti/ Fe1-xGdx sample as a model system, the torque efficiency increases four-fold by enhancing the spin-orbit coupling in Fe1-xGdx through modulating Gd composition, which is a characteristic feature of orbital torque. Our findings demonstrate that light metals in combination with rare earth-transition metal ferrimagnets can be employed for efficient orbitronic devices and serve as a model system for studying orbitronics. |
| title | Orbital torque switching of perpendicular magnetization in light metal/ferrimagnet bilayers |
| topic | Materials Science |
| url | https://arxiv.org/abs/2410.02238 |