Abstract

The phonon spectrum of reactor grade graphite is computed by means of the essentially exact root sampling technique for a sampling 47 788 points in an irreducible segment of the Brillouin zone. Measurements of the specific heat (over the range 100°—1000°K) are used to determine the force constants, resulting in good agreement of the calculated phonon spectrum, and neutron scattering measurements.

Keywords

PhononBrillouin zoneGraphiteSpectrum (functional analysis)Sampling (signal processing)Range (aeronautics)Neutron scatteringBrillouin scatteringNeutronCondensed matter physicsMaterials scienceScatteringPhysicsOpticsQuantum mechanics

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Publication Info

Year
1965
Type
article
Volume
42
Issue
1
Pages
357-364
Citations
103
Access
Closed

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Cite This

James A. Young, J.U. Koppel (1965). Phonon Spectrum of Graphite. The Journal of Chemical Physics , 42 (1) , 357-364. https://doi.org/10.1063/1.1695699

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DOI
10.1063/1.1695699