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\bibitem{Peymanirad_etal2017} {\textquotedblleft}\textit{Thermal activated rotation of graphene flake on graphene}{\textquotedblright}. Peymanirad F, Singh SK, Ghorbanfekr-Kalashami H, Novoselov KS, Peeters FM, Neek-Amal M, 2D materials \textbf{4}, 025015 (2017).   http://doi.org/10.1088/2053-1583/AA58A4

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