TY - JOUR
T1 - Electronic structure of helically coiled carbon nanotubes
T2 - Relation between the phason lines and energy band features
AU - Akagi, Kazuto
AU - Tamura, Ryo
AU - Tsukada, Masaru
AU - Itoh, Satoshi
AU - Ihara, Sigeo
PY - 1996/1/1
Y1 - 1996/1/1
N2 - Recently carbon nanotubes with coiled structures (carbon helix) were found and have attracted much attention. The electronic structures of two families of such helices, whose structures are proposed by two of the present authors (Ihara and Itoh), are calculated using a tight-binding method based on development maps. It is shown that the various band structures are classified by parameters characterizing the geometry of helices based on the concept of “phason line.” Semimetallic character, which could not be manifested in straight tubes, is found in only one of those families.
AB - Recently carbon nanotubes with coiled structures (carbon helix) were found and have attracted much attention. The electronic structures of two families of such helices, whose structures are proposed by two of the present authors (Ihara and Itoh), are calculated using a tight-binding method based on development maps. It is shown that the various band structures are classified by parameters characterizing the geometry of helices based on the concept of “phason line.” Semimetallic character, which could not be manifested in straight tubes, is found in only one of those families.
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U2 - 10.1103/PhysRevB.53.2114
DO - 10.1103/PhysRevB.53.2114
M3 - Article
AN - SCOPUS:0001634486
VL - 53
SP - 2114
EP - 2120
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
SN - 0163-1829
IS - 4
ER -