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\bibitem{Pourtois_etal2005} {\textquotedblleft}\textit{First-principle calculations on gate/dielectric interfaces : on the origin of work function shifts}{\textquotedblright}. Pourtois G, Lauwers A, Kittl J, Pantisano L, Sor{\'e}e B, De Gendt S, Magnus W, Heyns A, Maex K, Microelectronic engineering \textbf{80}, 272 (2005).   http://doi.org/10.1016/j.mee.2005.04.080

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