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/content/aip/journal/jap/119/6/10.1063/1.4941385
1.
1. C. S. Allen, E. Liberti, J. S. Kim, Q. Xu, Y. Fan et al., J. Appl. Phys. 118, 074302 (2015).
http://dx.doi.org/10.1063/1.4928324
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2. C. S. Allen, E. Liberti, J. S. Kim, Q. Xu, Y. Fan et al., J. Appl. Phys. 118, 159902 (2015).
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http://dx.doi.org/10.1103/PhysRevB.79.075442
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5. Y.-L. Chen and D.-P. Yang, in Mössbauer Effect in Lattice Dynamics ( Wiley-VCH Verlag GmbH & Co., 2007), p. 177.
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http://aip.metastore.ingenta.com/content/aip/journal/jap/119/6/10.1063/1.4941385
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/content/aip/journal/jap/119/6/10.1063/1.4941385
2016-02-08
2016-12-08

Abstract

In an interesting recent study [Allen ., J. Appl. Phys. , 074302 (2015)] (see also their Erratum [Allen ., J. Appl. Phys. , 159902 (2015)]), Allen and co-workers measured the mean square amplitudes of graphenelattice 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.

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