Bulg. J. Phys. vol.31 no.3-4 (2004), pp. 148-153

A New Model of Onion-Like Fullerenes and Their Polymers

B. D. Kandilarov1, V. Detcheva2, M. Barneva3
1Institute of Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, 72 Tzarigradsko Chaussee Blvd., 1784 Sofia, Bulgaria
2Department of Condensed Matter Physics, Sofia University St. Kliment Ochridsky, 1126 Sofia, Bulgaria
3Institute of Mathematics, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
Abstract. A new approach to modelling chains of onion-like structures, based on a recently proposed realization of δ'-point interactions by chains of onionlike geometric scatterers, is developed and rigorous expressions for the effective masses of both electrons and holes in such structures are derived. The approach is applied to onion-like fulerene structures. Numerical analysis is performed and the values of the effective masses thus obtained are in agreement with experimental estimates for fullerene polymers. The drastic differences between these effective masses and those in chains comprising single atoms modelled by δ-point interactions is explained.

Full-text: PDF

go back