重点关注功能氧化物薄膜、界面和纳米结构的制备、新颖物性及应用。利用激光分子束外延生长手段实现功能氧化物体系在原子尺度的精确设计和制备，进而对其物理特性和应用进行研究和探索。我们关注该领域的若干重要问题，如多铁性功能材料、氧化物自旋电子材料、介电压电材料等。一系列代表性成果在 Physics Review Letters, PNAS, Nature Communications, Advanced Materials等杂志上发表，目前共发表论文26篇，引用1300余次。多次受邀在国际学术会议做邀请报告，包括美国物理学会 (APS) 三月份年会会议、欧洲材料学会（EMRS）秋季会议、国际磁学会议 (ICM)等。
Selected publications:
1. 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)
2. 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)
3. S. Emori, Di Yi, S. Crossley, J. Wisser, P. Balakrishnan, P. Shafer, C. Klewe, A. N’Diaye, B. Urwin, K. Mahalingam, B. Howe, H. Hwang, E. Arenholz and Y. Suzuki. “Ultralow damping in epitaxial spinel ferrite thin films”, Nano Letters 18, 4273 (2018)
4. 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)
5. 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)
6. 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)
7. I. Fina, X. Marti, Di Yi, J. Liu, J.-H. Chu, C. R.-Serrao, S. Suresha, AB Shick, J. Zelezny, T. Jungwirth, J. Fontcuberta, R. Ramesh, “Anisotropic magnetoresistance in an antiferromagnetic semiconductor”, Nature Communications, 5, 4671 (2014)
8. 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)
9. S. M. Wu, S. A. Cybart, Di Yi, J. M. Parker, R. Ramesh, R.C. Dynes, “Full electric control of exchange bias”, Physical Review Letters, 110, 067202 (2013)