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\bibitem{Clima_etal2020} {\textquotedblleft}\textit{Ovonic threshold-switching GexSey chalcogenide materials : stoichiometry, trap nature, and material relaxation from first principles}{\textquotedblright}. Clima S, Garbin D, Opsomer K, Avasarala NS, Devulder W, Shlyakhov I, Keukelier J, Donadio GL, Witters T, Kundu S, Govoreanu B, Goux L, Detavernier C, Afanas{\textquoteright}ev V, Kar GS, Pourtois G, Physica Status Solidi-Rapid Research Letters , 1900672 (2020).   http://doi.org/10.1002/PSSR.201900672

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