Spin‐Orbit Torque Induced by Switchable Crystal Inversion Symmetry Breaking
(SRO) that can be reversibly manipulated by the ferroelectric (FE) polarization of the adjacent FE material. Scanning transmission electron microscopy reveals that this crystal ISB is a novel crystal distortion, i.e., c/a crystal ratio change, induced by the Ru cation's off-center displacement within the electrostatic screening depth due to the FE field. By electrical harmonic measurement, we reveal that the existence of this crystal ISB can dramatically enhance the SOT efficiency in the SRO layer by more than 60%. Our work provides an alternative to design highly efficient SOT source layer, paving the way toward low-power spintronics.
Authors
- Rui Xiao (ORCID: https://orcid.org/0000-0002-4380-9542)
- Q Chen
- Zhanqi Zhou
- Tieyang Zhao (ORCID: https://orcid.org/0000-0001-9357-3323)
- Q F Zhang
- Zhongran Liu
- Lanxin Jia (ORCID: https://orcid.org/0009-0004-9329-6396)
- Naafis Ahnaf Shahed (ORCID: https://orcid.org/0000-0002-2786-0823)
- He Tian
- Zhenyi Zheng (ORCID: https://orcid.org/0000-0003-4099-8752)
- J Chen
- Himanshu Mavani
- Xiaohong Xu (ORCID: https://orcid.org/0000-0001-7588-4793)
- Shu Shi
- Liang Liu
- Evgeny Y. Tsymbal (ORCID: https://orcid.org/0000-0002-6728-5480)
- Guowei Zhou
- Cheng Zhang
Institutions
- University of Nebraska–Lincoln (US)
- Chongqing University (CN)
- National University of Singapore (SG)
- Zhejiang University of Science and Technology (CN)
- Shanghai Jiao Tong University (CN)
- Ministry of Education (RW)
- Suzhou Research Institute (CN)
- Zhejiang University (CN)
- Beihang University (CN)
Publication Details
- Journal
- Advanced Materials
- Published
- 2026-04-27
- DOI
- https://doi.org/10.1002/adma.73219
- Primary Topic
- Ferroelectric and Piezoelectric Materials
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Research Foundation
- National Key Research and Development Program of China