Polymorphism of Extended Fullerene Networks: Geometrical Parameters and Electronic Structures
Titel:
Polymorphism of Extended Fullerene Networks: Geometrical Parameters and Electronic Structures
Auteur:
Fujita, Mitsutaka Yoshida, Mitsuho Nakada, Kyoko
Verschenen in:
Fullerenes, nanotubes & carbon nanostructures
Paginering:
Jaargang 4 (1996) nr. 3 pagina's 565-582
Jaar:
1996-05-01
Inhoud:
The morphology of fullerene networks can be widely extended by introducing heptagonal or octagonal rings, which produce a Gaussian negative curvature. Their presence makes it possible to form donut-, coil- and sponge-shaped networks of carbon atoms. We discuss the geometry of the polymorphous forms based on the net diagram method relative to a honeycomb lattice, and further study the electronic structures constructed by the network of electrons system. Special emphasis is put on how the geometrical paramateres, which specify the relative arrangement of polygonal ring, control the electronic structures in the various extended-fullerene networks. In addition, we mention that the presence of a certain type of edge in fullerene network derives critical localized edge stages at the Fermi level.