Orientation-Controlled Bi<sub>26-<i>x</i>-<i>y</i></sub>Co<sub><i>x</i></sub>Fe<sub><i>y</i></sub>O<sub>40</sub>/MgO/Si Thin Films: Enhanced Magneto-Optical Performance.
(BCFO) thin films deposited by radio-frequency (RF) magnetron sputtering. Structural and interfacial characterizations show that MgO effectively suppresses interdiffusion of Si and Fe/Co, as well as promotes a preferred orientation in BCFO. Consequently, MgO-buffered films exhibit markedly improved properties: the surface roughness decreases by 38%, the saturation magnetization increases to 1.5 times its original value and the magnetic circular dichroism (MCD) signal increases by approximately fivefold. These results highlight the potential of MgO-buffered BCFO films for practical nonreciprocal optical devices.
Authors
- Jianmin Wu (ORCID: https://orcid.org/0000-0002-0999-9194)
- Teng Gao (ORCID: https://orcid.org/0000-0002-0196-689X)
- Zi Wang (ORCID: https://orcid.org/0000-0002-3953-0493)
- Bowen Zhang (ORCID: https://orcid.org/0000-0003-0432-745X)
- Yuling Lin (ORCID: https://orcid.org/0000-0002-2911-9780)
- Qinyu Cao
- Naifeng Zhuang
- Jiafang Xie
- Xiaolin Hu
- Yufeng Xie
- Lingbo Zhou
- Cheng Wang
Institutions
- Tan Kah Kee Innovation Laboratory (CN)
- Fuzhou University (CN)
Publication Details
- Journal
- PubMed
- Published
- 2026-07-27
- DOI
- https://doi.org/10.1021/acsami.6c04528
- Primary Topic
- Magneto-Optical Properties and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00