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An instability condition for the Hartree–Fock solution of the infinite one-dimensional system with two-crossing bands. I. Singlet-instability check of metallic carbon nanotube

✍ Scribed by Kazuyoshi Tanaka; Mayumi Okada; Yuanhe Huang; Takao Yoshii; Akihiro Ito


Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
227 KB
Volume
76
Category
Article
ISSN
0020-7608

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✦ Synopsis


An instability condition is derived for the Hartree-Fock solution so that it can be applied to the system in which the highest occupied and the lowest unoccupied bands cross at the in-between point in the Brillouin zone. The instability check developed here is further applied to a metallic single-walled carbon nanotube having the two-crossing bands toward prediction of its instability.