Observation of Moment-Dependent and Field-Driven Unidirectional Magnetoresistance in CoFeB/InSb/CdTe Heterostructures
Magnetoresistance effects are crucial for understanding the charge-spin transport as well as propelling the advancement of spintronic applications. Here, we report the coexistence of magnetic-moment-dependent (MD) and magnetic-field-driven (FD) unidirectional magnetoresistance (UMR) effects in CoFeB/InSb/CdTe heterostructures. The strong spin-orbital coupling of InSb and the matched impedance at the CoFeB/InSb interface warrant a distinct MD-UMR effect at room temperature, while the interaction between the in-plane magnetic field and the Rashba effect at the InSb/CdTe interface induces the marked FD-UMR signal that dominates the high-field region. Moreover, owning to different spin scattering mechanisms, these two types of non-reciprocal charge transports show opposite polarities with respect to the magnetic field direction, which further enables an effective phase modulation of the angular-dependent magnetoresistance. The demonstration of the tunable UMR response validates our CoFeB/InSb/CdTe system as a suitable integrated building block for multifunctional spintronic memory and sensor designs.
Authors
- Bin Rong (ORCID: https://orcid.org/0009-0000-5713-4083)
- Xufeng Kou (ORCID: https://orcid.org/0000-0002-8860-5105)
- Jiuming Liu
- Hanzhi Ruan
- Yumeng Yang (ORCID: https://orcid.org/0000-0002-8071-4470)
- Lu Sun (ORCID: https://orcid.org/0000-0001-8126-2982)
- Liyang Liao (ORCID: https://orcid.org/0000-0003-1486-0442)
- Puyang Huang (ORCID: https://orcid.org/0000-0003-3013-9479)
- Renchao Che (ORCID: https://orcid.org/0000-0002-6583-7114)
- Xinyu Cai (ORCID: https://orcid.org/0000-0002-7502-9778)
- Zhenghang Zhi
- Guoqiang Yu (ORCID: https://orcid.org/0000-0002-7439-6920)
- Shan Yao
- Xinqi Liu (ORCID: https://orcid.org/0000-0002-6045-718X)
- Liang Yu (ORCID: https://orcid.org/0009-0007-3922-3454)
- Qi Yao (ORCID: https://orcid.org/0000-0002-4146-0914)
- Chenjia Tang (ORCID: https://orcid.org/0000-0002-3823-0624)
- Yuyang Wu (ORCID: https://orcid.org/0009-0000-1157-8308)
Institutions
- Chinese Academy of Sciences (CN)
- Fudan University (CN)
- ShanghaiTech University (CN)
- Shanghai Institute of Microsystem and Information Technology (CN)
- Shanghai Research Institute of Materials (CN)
- Collaborative Innovation Center of Chemistry for Energy Materials (CN)
- Institute of Physics (CN)
- University of Chinese Academy of Sciences (CN)
- The University of Tokyo (JP)
Publication Details
- Journal
- ACS Applied Materials & Interfaces
- Published
- 2024-08-20
- DOI
- https://doi.org/10.1021/acsami.4c08159
- Citations
- 2
- Primary Topic
- Magnetic properties of thin films
- Type
- article
- Field-Weighted Citation Impact
- 0.68
Funders
- National Natural Science Foundation of China
- Science and Technology Commission of Shanghai Municipality
- ShanghaiTech University
- National Key Research and Development Program of China