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| Main Authors: | , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2026
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2605.30909 |
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| _version_ | 1866917547397349376 |
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| author | Li, Qiang Fang, Shibo Yang, Zongmeng Yang, Xingyue Wang, Jianhua Peng, Rui Zhu, Lin Wang, Shuhua Liu, Dexing Zhang, Min Ren, Dahua Zhang, Mai Zhang, Han Ang, Yee Sin |
| author_facet | Li, Qiang Fang, Shibo Yang, Zongmeng Yang, Xingyue Wang, Jianhua Peng, Rui Zhu, Lin Wang, Shuhua Liu, Dexing Zhang, Min Ren, Dahua Zhang, Mai Zhang, Han Ang, Yee Sin |
| contents | Altermagnets, featuring momentum-dependent spin splitting without net magnetization, provide a promising platform for spintronic functionalities beyond conventional ferromagnets and antiferromagnets. Here, we propose an altermagnetic spin photovoltaic battery consisting of a nonmagnetic semiconducting layer sandwiched between two altermagnetic electrodes. Using first-principles quantum-transport simulations, we show that a V2Te2O/ZnSe/V2Te2O junction supports a pure spin photocurrent for opposite Néel vectors in the two altermagnetic electrodes, with spin-up and spin-down photocurrents equal in magnitude and opposite in sign. The effect persists under both linearly and circularly polarized light and remains tunable with photon energy and polarization angle. Our results establish a realistic route toward light-driven pure spin-current generation in altermagnetic junctions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_30909 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Pure Spin Photocurrent in Altermagnetic Photovoltaic Battery Li, Qiang Fang, Shibo Yang, Zongmeng Yang, Xingyue Wang, Jianhua Peng, Rui Zhu, Lin Wang, Shuhua Liu, Dexing Zhang, Min Ren, Dahua Zhang, Mai Zhang, Han Ang, Yee Sin Mesoscale and Nanoscale Physics Altermagnets, featuring momentum-dependent spin splitting without net magnetization, provide a promising platform for spintronic functionalities beyond conventional ferromagnets and antiferromagnets. Here, we propose an altermagnetic spin photovoltaic battery consisting of a nonmagnetic semiconducting layer sandwiched between two altermagnetic electrodes. Using first-principles quantum-transport simulations, we show that a V2Te2O/ZnSe/V2Te2O junction supports a pure spin photocurrent for opposite Néel vectors in the two altermagnetic electrodes, with spin-up and spin-down photocurrents equal in magnitude and opposite in sign. The effect persists under both linearly and circularly polarized light and remains tunable with photon energy and polarization angle. Our results establish a realistic route toward light-driven pure spin-current generation in altermagnetic junctions. |
| title | Pure Spin Photocurrent in Altermagnetic Photovoltaic Battery |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2605.30909 |