✦ LIBER ✦

On the vibrational modes of C60

✍ Scribed by Dennis P. Clougherty; John P. Gorman

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 242 KB
Volume: 251
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(96)00103-0

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✦ Synopsis

The vibrational spectrum of C6o is compared to the spectrum of a classical isotropic elastic spherical shell. We show correlations between the low frequency modes of C60 and those of the spherical shell. We find the spherical model gives the approximate frequency ordering for the low frequency modes. We estimate a Poisson ratio of o" ~ 0.30 and a transverse of sound of vs ~ 1800 m/s for the equivalent elastic shell. We also find that to(Ml)/w(Mo) = ~ for the shell speed modes M0 and M1, independent of elastic constants. We find that this ratio compares favorably with an experimental value of 1.17.

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