Integral and Local Elastic Properties of C60 Single Crystals

✍ Scribed by Ya.M. Soifer; N. P. Kobelev; R. K. Nikolaev; V. M. Levin

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 152 KB
• Volume: 214
• Category: Article
• ISSN: 0370-1972
• DOI: 10.1002/(sici)1521-3951(199908)214:2<303::aid-pssb303>3.0.co;2-8

✦ Synopsis

Elastic properties of the f.c.c. phase of solid C 60 have been determined experimentally on the base of sound velocity measurements in single crystalline specimens of different crystallographic orientations. Integral elastic properties were measured by the echo-pulse method at 5 MHz and local elastic parameters were measured by the acoustic microscopy technique. The local values obtained have confirmed with a good accuracy the results from measurements of integral elastic properties in single crystals of solid C 60 . From these experimental data the magnitudes of elastic stiffness constants for the f.c.c. phase of solid C 60 were calculated. The results obtained are in good agreement with the theoretical estimations of elastic moduli made in terms of existing models of intermolecular interaction in C 60 .