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| Main Authors: | , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2508.00572 |
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| _version_ | 1866908475306541056 |
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| author | Qin, Fanglu Liu, Haiyang Yang, Aosai Liu, Yilin Wang, Xuanji Sun, Yue Zhou, Xinyi Sofer, Zdenek Zhou, Jiayuan Liu, Xue Liu, Sheng Zhang, Vanessa Li Liu, Xiaoze Gao, Weibo Yu, Ting |
| author_facet | Qin, Fanglu Liu, Haiyang Yang, Aosai Liu, Yilin Wang, Xuanji Sun, Yue Zhou, Xinyi Sofer, Zdenek Zhou, Jiayuan Liu, Xue Liu, Sheng Zhang, Vanessa Li Liu, Xiaoze Gao, Weibo Yu, Ting |
| contents | Emerging two-dimensional (2D) magnetic semiconductors represent transformative platforms to explore magneto-optics and opto-spintronic applications. Though 2D opto-spintronics has attracted tremendous research efforts in spin-dependent photodetectors and non-volatile memory components, the realization of one core application - spin-modulated light-emitting device (spin-LED) - remains elusive so far. Here we successfully realize prototype spin-LED integrated with a 2D semiconducting magnet CrSBr, demonstrating considerable electroluminescence (EL) down to bilayers. Intriguingly, the EL of the spin-LED is discovered to be directly manipulated by spin-flip and spin-canting transitions. Notably, spin-flip transitions enable unprecedented hysteretic behaviors of EL characteristics, while spin-canting transitions induce EL continuous modulation with robust anisotropy. This versatile manipulation is originated from the synergy of magnetic-order mediated excitonic transitions and spintronic transport. The prototype demonstration of spin-LED establishes an indispensable scheme of opto-spintronic devices leveraging 2D spin transitions and strong excitonic effects, presenting a critical step towards integrated 2D opto-spintronics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_00572 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Spin light-emitting devices in a 2D magnet Qin, Fanglu Liu, Haiyang Yang, Aosai Liu, Yilin Wang, Xuanji Sun, Yue Zhou, Xinyi Sofer, Zdenek Zhou, Jiayuan Liu, Xue Liu, Sheng Zhang, Vanessa Li Liu, Xiaoze Gao, Weibo Yu, Ting Applied Physics Emerging two-dimensional (2D) magnetic semiconductors represent transformative platforms to explore magneto-optics and opto-spintronic applications. Though 2D opto-spintronics has attracted tremendous research efforts in spin-dependent photodetectors and non-volatile memory components, the realization of one core application - spin-modulated light-emitting device (spin-LED) - remains elusive so far. Here we successfully realize prototype spin-LED integrated with a 2D semiconducting magnet CrSBr, demonstrating considerable electroluminescence (EL) down to bilayers. Intriguingly, the EL of the spin-LED is discovered to be directly manipulated by spin-flip and spin-canting transitions. Notably, spin-flip transitions enable unprecedented hysteretic behaviors of EL characteristics, while spin-canting transitions induce EL continuous modulation with robust anisotropy. This versatile manipulation is originated from the synergy of magnetic-order mediated excitonic transitions and spintronic transport. The prototype demonstration of spin-LED establishes an indispensable scheme of opto-spintronic devices leveraging 2D spin transitions and strong excitonic effects, presenting a critical step towards integrated 2D opto-spintronics. |
| title | Spin light-emitting devices in a 2D magnet |
| topic | Applied Physics |
| url | https://arxiv.org/abs/2508.00572 |