Phonon spectrum and vibrational characteristics of linear nanostructures in solid matrices
The atomic dynamics of linear chains embedded in a crystalline matrix or adsorbed on its surface is studied. A linear chain formed by substitutional impurities in a surface layer and at the same time offsetting from this layer was analyzed particularly. This system models the actively studied expe...
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| Дата: | 2015 |
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| Автори: | , , , , |
| Формат: | Стаття |
| Мова: | English |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2015
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| Назва видання: | Физика низких температур |
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| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/127953 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Phonon spectrum and vibrational characteristics of linear nanostructures in solid matrices / E.V. Manzhelii, S.B. Feodosyev, I.A. Gospodarev, E.S. Syrkin, and K.A. Minakova // Физика низких температур. — 2015. — Т. 41, № 7. — С. 718–724. — Бібліогр.: 29 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
irk-123456789-127953 |
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dspace |
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irk-123456789-1279532018-01-01T03:03:01Z Phonon spectrum and vibrational characteristics of linear nanostructures in solid matrices Manzhelii, E.V. Feodosyev, S.B. Gospodarev, I.A. Syrkin, E.S. Minakova, K.A. 10th International Conference on Cryocrystals and Quantum Crystals (Final part) The atomic dynamics of linear chains embedded in a crystalline matrix or adsorbed on its surface is studied. A linear chain formed by substitutional impurities in a surface layer and at the same time offsetting from this layer was analyzed particularly. This system models the actively studied experimentally structures in which gas molecules are adsorbed on the walls of the bundles of carbon nanotubes located in certain medium. It is shown that the quasi-one-dimensional features are typical for the chains in which the interatomic interaction is higher than the interaction between the atoms of the chain and the atoms of the crystal matrix. On the local phonon density of atoms of the chain the transition to quasi-one-dimensional behavior has the form of the kink. In other words, it is the first (lowest-frequency) van Hove singularity, which in 3D structures (the system under consideration is generally three-dimensional) corresponds to the transition from closed to open constant-frequency (quasi-plane) surfaces. The local phonon densities of atoms in the chain have one-dimensional character at frequencies higher than the frequency of the van Hove singularity. The rms amplitude of embedded chains atoms vibrations is calculated and the behavior of the atomic vibrations contribution in the low-temperature heat capacity of the system is analyzed. 2015 Article Phonon spectrum and vibrational characteristics of linear nanostructures in solid matrices / E.V. Manzhelii, S.B. Feodosyev, I.A. Gospodarev, E.S. Syrkin, and K.A. Minakova // Физика низких температур. — 2015. — Т. 41, № 7. — С. 718–724. — Бібліогр.: 29 назв. — англ. 0132-6414 PACS: 65.80.–g, 61.72.–y, 63.20.–e http://dspace.nbuv.gov.ua/handle/123456789/127953 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 |
10th International Conference on Cryocrystals and Quantum Crystals (Final part) 10th International Conference on Cryocrystals and Quantum Crystals (Final part) |
| spellingShingle |
10th International Conference on Cryocrystals and Quantum Crystals (Final part) 10th International Conference on Cryocrystals and Quantum Crystals (Final part) Manzhelii, E.V. Feodosyev, S.B. Gospodarev, I.A. Syrkin, E.S. Minakova, K.A. Phonon spectrum and vibrational characteristics of linear nanostructures in solid matrices Физика низких температур |
| description |
The atomic dynamics of linear chains embedded in a crystalline matrix or adsorbed on its surface is studied.
A linear chain formed by substitutional impurities in a surface layer and at the same time offsetting from this
layer was analyzed particularly. This system models the actively studied experimentally structures in which gas
molecules are adsorbed on the walls of the bundles of carbon nanotubes located in certain medium. It is shown
that the quasi-one-dimensional features are typical for the chains in which the interatomic interaction is higher
than the interaction between the atoms of the chain and the atoms of the crystal matrix. On the local phonon density
of atoms of the chain the transition to quasi-one-dimensional behavior has the form of the kink. In other
words, it is the first (lowest-frequency) van Hove singularity, which in 3D structures (the system under consideration
is generally three-dimensional) corresponds to the transition from closed to open constant-frequency (quasi-plane)
surfaces. The local phonon densities of atoms in the chain have one-dimensional character at frequencies
higher than the frequency of the van Hove singularity. The rms amplitude of embedded chains atoms
vibrations is calculated and the behavior of the atomic vibrations contribution in the low-temperature heat capacity
of the system is analyzed. |
| format |
Article |
| author |
Manzhelii, E.V. Feodosyev, S.B. Gospodarev, I.A. Syrkin, E.S. Minakova, K.A. |
| author_facet |
Manzhelii, E.V. Feodosyev, S.B. Gospodarev, I.A. Syrkin, E.S. Minakova, K.A. |
| author_sort |
Manzhelii, E.V. |
| title |
Phonon spectrum and vibrational characteristics of linear nanostructures in solid matrices |
| title_short |
Phonon spectrum and vibrational characteristics of linear nanostructures in solid matrices |
| title_full |
Phonon spectrum and vibrational characteristics of linear nanostructures in solid matrices |
| title_fullStr |
Phonon spectrum and vibrational characteristics of linear nanostructures in solid matrices |
| title_full_unstemmed |
Phonon spectrum and vibrational characteristics of linear nanostructures in solid matrices |
| title_sort |
phonon spectrum and vibrational characteristics of linear nanostructures in solid matrices |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| publishDate |
2015 |
| topic_facet |
10th International Conference on Cryocrystals and Quantum Crystals (Final part) |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/127953 |
| citation_txt |
Phonon spectrum and vibrational characteristics of linear nanostructures in solid matrices / E.V. Manzhelii, S.B. Feodosyev, I.A. Gospodarev, E.S. Syrkin, and K.A. Minakova // Физика низких температур. — 2015. — Т. 41, № 7. — С. 718–724. — Бібліогр.: 29 назв. — англ. |
| series |
Физика низких температур |
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