Doping-induced magnetic phase transition enables all-electrical spin control in CrSBr
Van der Waals antiferromagnetic semiconductors are promising platforms for energy-efficient two-dimensional spintronics. However, their intrinsic spin degeneracy and the difficulty of achieving electrical spin control pose major challenges for practical device implementation. Here, we present a distinct spintronic platform based on an antiferromagnetic semiconductor CrSBr, in which carrier doping induced by gate-controlled intercalation drives a reversible, zero-field antiferromagnetic to ferromagnetic phase transition, enabling direct and full electrical control of both magnetic order and spin polarization. Exploiting this transition, we engineer CrSBr/graphene heterostructures that leverage interfacial charge transfer to spatially pattern magnetic phases, resulting in lateral spin valves with gate-controlled spin polarization reversal, all without ferromagnetic contacts. Crucially, this mechanism also enables electrical switching of magnetic order via spin-transfer torque at ultralow current densities (<10<sup>3</sup> A/cm<sup>2</sup>), demonstrating its efficiency and device compatibility. These findings open a new paradigm for reconfigurable, all-electrical spintronic systems based on van der Waals antiferromagnetic semiconductors.
Authors
- Kun Yan (ORCID: https://orcid.org/0009-0002-5935-7162)
- Xiaobin Chen (ORCID: https://orcid.org/0000-0001-5761-5020)
- Wu Shi (ORCID: https://orcid.org/0000-0002-6458-4776)
- Yibin Zhao (ORCID: https://orcid.org/0009-0006-2025-5555)
- Guangchun Zhao (ORCID: https://orcid.org/0009-0004-3497-2307)
- Yingchun Cheng (ORCID: https://orcid.org/0000-0002-8495-9184)
- Kunlin Yang (ORCID: https://orcid.org/0009-0001-9505-0320)
- Jia‐Wei Mei (ORCID: https://orcid.org/0000-0003-4933-4880)
- Zhe Yuan (ORCID: https://orcid.org/0000-0002-1898-7857)
- Yi Liu (ORCID: https://orcid.org/0000-0001-8677-5584)
- Jiaqi Liu (ORCID: https://orcid.org/0000-0003-4983-7816)
- Zhe Wang (ORCID: https://orcid.org/0000-0001-5664-2932)
- Yu Zhang (ORCID: https://orcid.org/0000-0002-1405-5788)
- Cheng Zhang (ORCID: https://orcid.org/0000-0002-9882-1952)
- Tuoyu Zhao
- Qi Li
- Zejing Guo
- Jianting Ye (ORCID: https://orcid.org/0000-0002-3667-3069)
Institutions
- Nanjing Tech University (CN)
- University of Shanghai for Science and Technology (CN)
- University of Groningen (NL)
- Fudan University (CN)
- Beijing Normal University (CN)
- Southern University of Science and Technology (CN)
- Yanshan University (CN)
- The Synergetic Innovation Center for Advanced Materials (CN)
- Xi'an Jiaotong University (CN)
- Ministry of Industry and Information Technology (CN)
Publication Details
- Journal
- Nature Communications
- Published
- 2025-12-19
- DOI
- https://doi.org/10.1038/s41467-025-67561-3
- Citations
- 2
- Primary Topic
- 2D Materials and Applications
- Type
- article
- Field-Weighted Citation Impact
- 1.04