課題組長期關注多鐵性材料和器件,聚焦功能氧化物薄膜、界面和納米結構的制備、新穎物性及應用,利用激光分子束外延生長手段實現材料在原子尺度的精确設計和制備,發展新型多鐵性材料、磁電耦合新機制及磁電新器件構型,為推動超低功耗信息存算技術的發展提供創新思路與理論基礎。
以第一/通訊作者身份在Phys. Rev. Lett., Adv. Mater., PNAS, Nat. Comm.等材料和物理類核心期刊發表論文十餘篇,在Science, Nat. Mater., Adv. Mater.等期刊上合作發表論文40餘篇,引用3000餘次(H-index 22)。目前主持基金委原創探索項目、重大研究計劃培養項目、參與科技部重點研發、北京市自科基金重點項目。
課題組擁有激光分子束外延薄膜制備、高真空磁控濺射、綜合物性測量系統、掃描探針顯微鏡、磁光克爾顯微鏡等實驗設備,與合作團隊在高頻測試、器件制備等方面建立密切合作。每年招收1-2名博士生,長期歡迎博士後加入,也歡迎對信息功能材料有興趣的本科生聯系。
部分代表性成果如下:
1. A. Tang, T. Xu, S. Liu, Y. Liang, H. Chen, D. Yan, Y. Shi, P. Yu, R. Yu, Y. Lin, T. Nan, W. Jiang*, Di Yi*, “Implementing Complex Oxides for Efficient Room-Temperature Spin-Orbit Torque Switching”, Advanced Electronic Materials, 8, 11, 2200514 (2022)
2. J. Wang, J. Ma, H. Huang*, J. Ma, H. M. Jafri, Y. Fan, H. Yang, Y. Wang, M. Chen, D. Liu, J. Zhang, Y.-H. Lin, L.-Q. Chen, Di Yi, C.-W. Nan*, Ferroelectric domain-wall logic units, Nature Communications 13, 3255 (2022)
3. H. Chen, Di Yi*, Spin-charge conversion in transition metal oxides, APL Materials 9, 060908 (2021)
4. Di Yi*, H. Amari, P. P. Balakrishnan, C. Klewe, A. T. N'Diaye, P. Shafer, N. Browning, Y. Suzuki, Interface-Driven Perpendicular Magnetic Anisotropy by Symmetry Control in Oxide Superlattices, Physical Review Applied 15, 024001 (2021)
5. Di Yi*, Y. Wang, O. M. J. van’t Erve, L. Xu, H. Yuan, M. Veit, P. Balakrishnan, Y. Choi, A. T. N’Diaye, P. Shafer, E. Arenholz, H. Xu*, P. Yu*, B. T. Jonker and Y. Suzuki. “Emergent electrical control of phase transformation in oxide superlattices”, Nature Communications, 11(1): 902 (2020)
6. Di Yi*, P. Yu*, Y. Chen, H. H. Lee, Q. He, Y. H. Chu and R. Ramesh. “Tailoring magnetoelectric coupling in BiFeO3/La0.7Sr0.3MnO3 by engineering interfacial polar discontinuity”, Advanced Materials, 31, 1806335 (2019)
7. Di Yi*, C. L. Flint, P. P. Balakrishnan, K. Mahalingam, B. Urwin, A. Vailionis, A. T. N’Diaye, P. Shafer, E. Arenholz, Y.-S. Choi, K. H. Stone, J.-H. Chu, B. M. Howe, J. Liu, I. R. Fisher, and Y. Suzuki, “Tuning perpendicular magnetic anisotropy by oxygen octahedral rotations in (La1−xSrxMnO3)/(SrIrO3) superlattices”, Physical Review Letters, 119, 077201 (2017)
8. Di Yi*, Nianpeng Lu, Xuegang Chen, Shengchun Shen and Pu Yu*, “Engineering magnetism at functional oxides interfaces: Manganites and Beyond”, Journal of Physics: Condensed Matter, 29, 443004 (2017) (Invited Topical Review)
9. Di Yi*, J. Liu, S.-L. Hsu, L. Zhang, Y. Choi, J.-W. Kim, Z. Chen, J. D. Clarkson, C. R. Serrao, E. Arenholz, P. J. Ryan, H. Xu, R. J. Birgeneau, R. Ramesh, “Atomic-scale control of magnetic anisotropy via novel spin–orbit coupling effect in La2/3Sr1/3MnO3/SrIrO3 superlattices”, Proceedings of the National Academy of Sciences, 113, 6397 (2016)
10. Di Yi, J. Liu, S. Okamoto, S. Jagannatha, Y.-C. Chen, P. Yu, Y.-H. Chu, E. Arenholz, R. Ramesh*, “Tuning the competition between ferromagnetism and antiferromagnetism in a half-doped manganite through magnetoelectric coupling”, Physical Review Letters, 111, 127601 (2013)
(完整論文列表可見于Google Scholar)