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Park, Noejung
Computational Physics & Electronic Structure Lab.
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Electronic structure and mechanical stability of the graphitic honeycomblattice

Author(s)
Park, NoejungIhm, J
Issued Date
2000-09
DOI
10.1103/PhysRevB.62.7614
URI
https://scholarworks.unist.ac.kr/handle/201301/8532
Fulltext
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=0034664443
Citation
PHYSICAL REVIEW B, v.62, no.11, pp.7614 - 7618
Abstract
A family of crystal structures of carbon composed of alternating sp2 and sp3 bonds is investigated. Graphitic strips are connected by sp3 bonds to form an array of hexagonal pillars exhibiting a honeycomb lattice in the perpendicular plane. The electronic structure and elastic properties of this family of structures are calculated using an ab initio pseudopotential as well as the environment-dependent tight-binding method. Their electronic structure has a similar size dependence to zigzag nanotubes; they are metallic if twice the strip width is a multiple of three hexagonal units, and otherwise semiconducting with a wider range of the band gap than for carbon nanotubes. The structural stability is studied and compared with other carbon structures.
Publisher
AMER PHYSICAL SOC
ISSN
2469-9950

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