Cation and anion topotactic transformations in cobaltite thin films leading to Ruddlesden-Popper phases, I. T. Chiu, M. H. Lee, S. Cheng, S. Zhang, L. Heki, Z. Zhang, Y. Mohtashami, P. N. Lapa, M. Feng, P. Shafer, A. T. N’Diaye, A. Mehta, J. A. Schuller, G. Galli, S. Ramanathan, Y. Zhu, I. K. Schuller and Y. Takamura, Physical Review Materials 5, 064416 (2021); Editor’s Suggestion

Perovskite nickelate actuators, C. Huang, J. Anderson, S. Paena, X. Chen, S. Ramanathan and D. Weinstein, IEEE Journal of Microelectromechanical Systems, 30, 488 (2021)

Sudden collapse of magnetic order in oxygen deficient nickelate films, J. Li, R. J. Green, Z. Zhang, R. Sutarto, J. T. Sadowski, Z. Zhu, G. Zhang, D. Zhou, Y. Sun, F. He, S. Ramanathan and R. Comin, Physical Review Letters, 126, 187602 (2021)

Neuromorphic learning with Mott insulator NiO, Z. Zhang, S. Mondal, S. Mandal, J. M. Allred, N. A. Aghamiri, A. Fali, Z. Zhang, H. Zhou, H. Cao, F. Rodolakis, J. L. McChesney, Q. Wang, Y. Sun, Y. Abate, K. Roy, K. M. Rabe and S. Ramanathan, Proceedings of the National Academy of Sciences of the USA, 118, e2017239118 (2021)

Low-temperature emergent neuromorphic networks with correlated oxide devices, U. S. Goteti, I. A. Zaluzhnyy, S. Ramanathan, R. C. Dynes and A. Frano, Proceedings of the National Academy of Sciences of the USA, 118, e2103934118 (2021)

Dynamics of voltage-driven oscillating insulator-metal transitions, Y. Shi, A. E. Duwel, D. M. Callahan, Y. Sun, F. A. Hong, H. Padmanabhan, V. Gopalan, R. Engel-Herbert, S. Ramanathan and L-Q. Chen, Physical Review B, 104, 064308 (2021)

Proton distribution visualization in perovskite devices utilizing nanofocused X-rays, I. A. Zaluzhnyy, P. O. Sprau, R. Tran, Q. Wang, H. T. Zhang, Z. Zhang, T. J. Park, N. Hua, B. Stoychev, M. J. Cherukara, M. V. Holt, E. Nazraretski, X. Huang, H. Yan, A. Pattammattel, Y. S. Chu, S. P. Ong, S. Ramanathan, O. Shpyrko and A. Frano, Physical Review Materials, 5, 095003 (2021)

Universal phase dynamics in VO2 switches revealed by ultrafast operando diffraction, A. Sood, X. Shen, Y. Shi, S. Kumar, S. J. Park, M. Zajac, Y. Sun, L. Q. Chen, S. Ramanathan, X. Wang, W. C. Chueh and A. M. Lindenberg, Science, 373, 352 (2021)

Ultrathin broadband reflective optical limiter, C. Wan, Z. Zhang, J. Salman, J. King, Y. Xiao, Z. Yu, A. Shahsafi, R. Wambold, S. Ramanathan and M. A. Kats, Laser and Photonics Reviews, in press (https://doi.org/10.1002/lpor.202100001, 2021)

Effective reduction of PdCoO2 thin films via hydrogenation and sign tunable anomalous Hall effect, G. Rimal, C. Schmidt, H. Hijazi, L. C. Feldman, Y. Liu, E. Skoropota, J. Lapano, M. Brahlek, D. Mukherjee, R. R. Unocic, M. F. Chisholm, Y. Sun, H. Yu, S. Ramanathan, C. J. Sun, H. Zhou and S. Oh, Physical Review Materials 5, L052001 (2021)