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

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

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.

Date of publication:14.2.2016
Journal title:Journal of Applied Physics
Peer reviewed:true
Digital Object Identifier (DOI):
Publication Type:Article