Comment on "temperature dependence of atomic vibrations in mono-layer graphene" [J. Appl. Phys. 118, 074302 (2015)]

Authors/others:Susi, T.; Kotakoski, J.
Abstract:

In an interesting recent study [Allen et al., J. Appl. Phys. 118, 074302 (2015)] (see also their Erratum [Allen et al., J. Appl. Phys. 118, 159902 (2015)]), Allen and co-workers measured the mean square amplitudes of graphene lattice vibrations between 100 and 1300 K and used a simplified theoretical approximation for the acoustic phonon modes to evaluate the maximum phonon wavelengths supported by the lattice. By fitting their data using the smallest wave-vector as the fitting parameter, they found this to be significantly smaller than the physical size of the graphene crystallites.

Language:English
Date of publication:14.2.2016
Journal title:Journal of Applied Physics
Volume:119
Number:6
Peer reviewed:true
Digital Object Identifier (DOI):http://dx.doi.org/10.1063/1.4941385
Publication Type:Article
Portal:https://ucris.univie.ac.at/portal/en/publications/comment-on-temperature-dependence-of-atomic-vibrations-in-monolayer-graphene-j-appl-phys-118-074302-2015(087a4e51-9e0c-4287-84cf-6fb5d4d0bd56).html