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On the orientational relief of the intermolecular potential and the structure of domain walls in fullerite C₆₀

On the orientational relief of the intermolecular potential and the structure of domain walls in fullerite C₆₀

A simple planar model for an orientational ordering of threefold molecules on a triangular lattice modeling a close-packed (111) plane of fullerite is considered. The system has 3-sublattice ordered ground state which includes 3 different molecular orientations. There exist 6 kinds of orientational...

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Bibliographic Details
Main Authors: Khalack, J.M., Loktev, V.M.
Format: Article
Language:English
Published: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2003
Series:Физика низких температур
Subjects:
Динамика кристаллической решетки
Online Access:http://dspace.nbuv.gov.ua/handle/123456789/128850
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spelling irk-123456789-1288502018-01-15T03:04:57Z On the orientational relief of the intermolecular potential and the structure of domain walls in fullerite C₆₀ Khalack, J.M. Loktev, V.M. Динамика кристаллической решетки A simple planar model for an orientational ordering of threefold molecules on a triangular lattice modeling a close-packed (111) plane of fullerite is considered. The system has 3-sublattice ordered ground state which includes 3 different molecular orientations. There exist 6 kinds of orientational domains, which are related with a permutation or a mirror symmetry. Interdomain walls are found to be rather narrow. The model molecules have two-well orientational potential profiles, which are slightly effected by a presence of a straight domain wall. The reason is a stronger correlation between neighbor molecules in the triangular lattice versus the square lattice previously considered. A considerable reduction (up to one order) of the orientational interwell potential barrier is found in the core regions of essentially two-dimentional potential defects, such as a three-domain boundary or a kink in the domain wall. For ultimately uncorrelated nearest neighbors the height of the interwell barrier can be reduced even by a factor of 10². 2003 Article On the orientational relief of the intermolecular potential and the structure of domain walls in fullerite C₆₀ / J.M. Khalack, V.M. Loktev // Физика низких температур. — 2003. — Т. 29, № 5. — С. 577-589. — Бібліогр.: 25 назв. — англ. 0132-6414 PACS: 61.48.+c, 78.30.Na http://dspace.nbuv.gov.ua/handle/123456789/128850 en Физика низких температур Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection DSpace DC
language English
topic Динамика кристаллической решетки
Динамика кристаллической решетки
spellingShingle Динамика кристаллической решетки
Динамика кристаллической решетки
Khalack, J.M.
Loktev, V.M.
On the orientational relief of the intermolecular potential and the structure of domain walls in fullerite C₆₀
Физика низких температур
description A simple planar model for an orientational ordering of threefold molecules on a triangular lattice modeling a close-packed (111) plane of fullerite is considered. The system has 3-sublattice ordered ground state which includes 3 different molecular orientations. There exist 6 kinds of orientational domains, which are related with a permutation or a mirror symmetry. Interdomain walls are found to be rather narrow. The model molecules have two-well orientational potential profiles, which are slightly effected by a presence of a straight domain wall. The reason is a stronger correlation between neighbor molecules in the triangular lattice versus the square lattice previously considered. A considerable reduction (up to one order) of the orientational interwell potential barrier is found in the core regions of essentially two-dimentional potential defects, such as a three-domain boundary or a kink in the domain wall. For ultimately uncorrelated nearest neighbors the height of the interwell barrier can be reduced even by a factor of 10².
format Article
author Khalack, J.M.
Loktev, V.M.
author_facet Khalack, J.M.
Loktev, V.M.
author_sort Khalack, J.M.
title On the orientational relief of the intermolecular potential and the structure of domain walls in fullerite C₆₀
title_short On the orientational relief of the intermolecular potential and the structure of domain walls in fullerite C₆₀
title_full On the orientational relief of the intermolecular potential and the structure of domain walls in fullerite C₆₀
title_fullStr On the orientational relief of the intermolecular potential and the structure of domain walls in fullerite C₆₀
title_full_unstemmed On the orientational relief of the intermolecular potential and the structure of domain walls in fullerite C₆₀
title_sort on the orientational relief of the intermolecular potential and the structure of domain walls in fullerite c₆₀
publisher Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
publishDate 2003
topic_facet Динамика кристаллической решетки
url http://dspace.nbuv.gov.ua/handle/123456789/128850
citation_txt On the orientational relief of the intermolecular potential and the structure of domain walls in fullerite C₆₀ / J.M. Khalack, V.M. Loktev // Физика низких температур. — 2003. — Т. 29, № 5. — С. 577-589. — Бібліогр.: 25 назв. — англ.
series Физика низких температур
work_keys_str_mv AT khalackjm ontheorientationalreliefoftheintermolecularpotentialandthestructureofdomainwallsinfulleritec60
AT loktevvm ontheorientationalreliefoftheintermolecularpotentialandthestructureofdomainwallsinfulleritec60
first_indexed 2023-10-18T20:56:17Z
last_indexed 2023-10-18T20:56:17Z
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