Carbon fibers based on the recently discovered fullerenes are proposed and their symmetry properties examined with respect to Raman- and infrared-active vibrational modes. Such carbon fibers are of interest as approximating the smallest possible diameter for a vapor-grown carbon fiber, and can be used for model calculations for the structure and properties of this limiting case of a carbon fiber.

• Received 19 November 1991

DOI:https://doi.org/10.1103/PhysRevB.45.6234