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\bibitem{Liao_etal2018} {\textquotedblleft}\textit{Metal{\textendash}insulator-transition engineering by modulation tilt-control in perovskite nickelates for room temperature optical switching}{\textquotedblright}. Liao Z, Gauquelin N, Green RJ, M{\"u}ller-Caspary K, Lobato I, Li L, Van Aert S, Verbeeck J, Huijben M, Grisolia MN, Rouco V, El Hage R, Villegas JE, Mercy A, Bibes M, Ghosez P, Sawatzky GA, Rijnders G, Koster G, America \textbf{115}, 9515 (2018).   http://doi.org/10.1073/pnas.1807457115

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