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Intrinsic edge asymmetry in narrow zigzag hexagonal heteroatomic nanoribbons causes their subtle uniform curvature / P. V. Avramov [et al.] // J. Phys. Chem. Lett. - 2012. - Vol. 3, Is. 15. - P. 2003-2008, DOI 10.1021/jz300625t. - Cited References: 42. - This work was supported by JAEA Research fellowship (P.V.A.). P.V.A. also acknowledges JAEA ASRC and the Molecular Spintronics Group for hospitality and fruitful collaboration. D.G.F. thanks Prof. Kazuo Kitaura for many fruitful discussions and the Next Generation SuperComputing Project, Nanoscience Program and Strategic Programs for Innovative Research (MEXT, Japan) for financial support. This work was partially supported by Russian Ministry of Education and Science (Contract No. 16.552.11.7014) (P.B.S.). . - ISSN 1948-7185

РУБ Chemistry, Physical + Nanoscience & Nanotechnology + Materials Science, Multidisciplinary + Physics, Atomic, Molecular & Chemical + Boron nitride + Density functional theory + Electronic structure + Fluorine + Graphene + Orbital calculations + Quantum chemistry + Silicon carbide
Рубрики:
MOLECULAR-ORBITAL METHOD
   WALLED CARBON NANOTUBES
   GRAPHENE NANORIBBONS
   ELECTRONIC-STRUCTURE
   OPTICAL-TRANSITIONS
   SOLIDS
   BOND
   Aromatic rings
   Conical surfaces
   Finite length
   Fragment molecular orbital methods
   Graphene nanoribbons
   Intrinsic curvature
   Nanoribbons
   Out-of-plane
   Structural stress
Кл.слова (ненормированные):
zigzag nanoribbons -- hexagonal atomic lattices -- fluorine-terminated graphene
Аннотация: The atomic and electronic structure of narrow zigzag nanoribbons with finite length, consisting of graphene terminated by fluorine on one side, hexagonal (h) h-BN, and h-SiC were studied with density functional theory. It is found that the asymmetry of nanoribbon edges causes a uniform curvature of the ribbons due to structural stress in the aromatic ring plane. Narrow graphene nanoribbons terminated with fluorine on one side demonstrate a considerable out-of-plane bend, suggesting that the nanoribbon is a fraction of a conical surface. It is shown that the intrinsic curvature of the narrow nanoribbons destroys the periodicity and results in a systematic cancellation of the dipole moment. The in- and out- of-plane curvature of thin arcs allows their closure in nanorings or cone fragments of giant diameter. Using the fragment molecular orbital method, we optimized the structure of a planar giant arc and a closed ring of h-BN with a diameter of 105 nm.

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Держатели документа:
[Avramov, Pavel V.
Sakai, Seiji
Entani, Shiro
Ohtomo, Manabu
Matsumoto, Yoshihiro
Naramoto, Hiroshi] Japan Atom Energy Agcy, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan
[Avramov, Pavel V.] LV Kirensky Inst Phys SB RAS, Krasnoyarsk 660036, Russia
[Fedorov, Dmitri G.] Natl Inst Adv Ind Sci & Technol, Nanosyst Res Inst, Tsukuba, Ibaraki 3058568, Japan
[Sorokin, Pavel B.] Technol Inst Superhard & Novel Carbon Mat, Troitsk 142190, Moscow Region, Russia

Доп.точки доступа:
Avramov, P. V.; Аврамов, Павел Вениаминович; Fedorov, D. G.; Sorokin, P. B.; Sakai, S.; Entani, S.; Ohtomo, M.; Matsumoto, Y.; Naramoto, H.
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