Murugavel, P and Narayana, Chandrabhas and Govindaraj , Achutharao and Sood, A. K. and Rao, C. N. R. (2000) Brillouin scattering from C70 and C60 films: a comparative study of elastic properties. CHEMICAL PHYSCIS LETTERS, 331 (2-4). pp. 149-153.
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Brillouin scattering measurements carried out on a thin film of C70 deposited on a Si(1 0 0) substrate show modes at 4.8 and 25 GHz due to the surface Rayleigh wave and the bulk longitudinal acoustic mode, respectively, the corresponding modes for C60 being found at 4.3 and 30 GHz. Based on the Brillouin data, the values of the bulk, shear and Young's moduli of C70 are found to be 11.3, 3.2 and 8.7 GPa, respectively (the corresponding values for C60 are 14.9, 4.7 and 12.7 GPa). Poisson's ratios for C70 and C60 are comparable, the values being 0.37 and 0.36, respectively.
|Subjects:||Material Science > Nanochemistry|
|Divisions:||Faculty of Engineering, Science and Mathematics > School of Physics|
Faculty of Engineering, Science and Mathematics > School of Chemistry
|Deposited On:||03 Apr 2009 06:35|
|Last Modified:||06 Apr 2009 17:53|
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