Spontaneously appearing discrete moving kinks in nonlinear acoustic chain with realistic potential
Molecular dynamic simulations are performed to investigate a long-time evolution of different initial signals in nonlinear acoustic chains with realistic Exp-6 potential and with power potentials. First, in the chain with realistic potential, long-lifetime kink-shaped excitations are found in the...
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| Дата: | 2003 |
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| Автори: | , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Інститут фізики конденсованих систем НАН України
2003
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| Назва видання: | Condensed Matter Physics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/120697 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Spontaneously appearing discrete moving kinks in nonlinear acoustic chain with realistic potential / L.S. Metlov, Yu.V. Eremeichenkova // Condensed Matter Physics. — 2003. — Т. 6, № 1(33). — С. 105-118. — Бібліогр.: 23 назв. — англ. |
Репозитарії
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irk-123456789-1206972017-06-13T03:05:04Z Spontaneously appearing discrete moving kinks in nonlinear acoustic chain with realistic potential Metlov, L.S. Eremeichenkova, Yu.V. Molecular dynamic simulations are performed to investigate a long-time evolution of different initial signals in nonlinear acoustic chains with realistic Exp-6 potential and with power potentials. First, in the chain with realistic potential, long-lifetime kink-shaped excitations are found in the system in thermodynamic equilibrium. They give sharp peaks on high-energy tile of Gibbs distribution. Travelling along the chain, each kink collects the energy from the background atoms, and, consequently, transfers it to smallamplitude phonons. Dynamic equilibrium is observed between the processes of growth and decay of the kinks. Проведено числові експерименти за методом молекулярної динаміки з метою дослідження довгочасової еволюції різноманітних початкових сигналів в нелінійнихакустичнихланцюжкахз реалістичним потенціалом виду Ехр-6 та зі ступеневими потенціалами. Впершеулан-цюжку з реалістичним потенціалом знайдені кінкоподібні збудження, що живуть довго, у стані термодинамічної рівноваги. Вони дають гострі піки на високоенергетичному хвості розподілу Гіббса. Прямуючи вздовж ланцюжка кожний кінк збирає енергію з атомів фону, та далі віддає її малоамплітудним фононам. Спостерігається динамічна рівновага між процесами росту та загасання кінків. 2003 Article Spontaneously appearing discrete moving kinks in nonlinear acoustic chain with realistic potential / L.S. Metlov, Yu.V. Eremeichenkova // Condensed Matter Physics. — 2003. — Т. 6, № 1(33). — С. 105-118. — Бібліогр.: 23 назв. — англ. 1607-324X PACS: 63.20.Pw, 63.20.Ry, 65.90.+i DOI:10.5488/CMP.6.1.105 http://dspace.nbuv.gov.ua/handle/123456789/120697 en Condensed Matter Physics Інститут фізики конденсованих систем НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| description |
Molecular dynamic simulations are performed to investigate a long-time
evolution of different initial signals in nonlinear acoustic chains with realistic
Exp-6 potential and with power potentials. First, in the chain with realistic
potential, long-lifetime kink-shaped excitations are found in the system in
thermodynamic equilibrium. They give sharp peaks on high-energy tile of
Gibbs distribution. Travelling along the chain, each kink collects the energy
from the background atoms, and, consequently, transfers it to smallamplitude
phonons. Dynamic equilibrium is observed between the processes
of growth and decay of the kinks. |
| format |
Article |
| author |
Metlov, L.S. Eremeichenkova, Yu.V. |
| spellingShingle |
Metlov, L.S. Eremeichenkova, Yu.V. Spontaneously appearing discrete moving kinks in nonlinear acoustic chain with realistic potential Condensed Matter Physics |
| author_facet |
Metlov, L.S. Eremeichenkova, Yu.V. |
| author_sort |
Metlov, L.S. |
| title |
Spontaneously appearing discrete moving kinks in nonlinear acoustic chain with realistic potential |
| title_short |
Spontaneously appearing discrete moving kinks in nonlinear acoustic chain with realistic potential |
| title_full |
Spontaneously appearing discrete moving kinks in nonlinear acoustic chain with realistic potential |
| title_fullStr |
Spontaneously appearing discrete moving kinks in nonlinear acoustic chain with realistic potential |
| title_full_unstemmed |
Spontaneously appearing discrete moving kinks in nonlinear acoustic chain with realistic potential |
| title_sort |
spontaneously appearing discrete moving kinks in nonlinear acoustic chain with realistic potential |
| publisher |
Інститут фізики конденсованих систем НАН України |
| publishDate |
2003 |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/120697 |
| citation_txt |
Spontaneously appearing discrete
moving kinks in nonlinear acoustic
chain with realistic potential / L.S. Metlov, Yu.V. Eremeichenkova // Condensed Matter Physics. — 2003. — Т. 6, № 1(33). — С. 105-118. — Бібліогр.: 23 назв. — англ. |
| series |
Condensed Matter Physics |
| work_keys_str_mv |
AT metlovls spontaneouslyappearingdiscretemovingkinksinnonlinearacousticchainwithrealisticpotential AT eremeichenkovayuv spontaneouslyappearingdiscretemovingkinksinnonlinearacousticchainwithrealisticpotential |
| first_indexed |
2023-10-18T20:37:43Z |
| last_indexed |
2023-10-18T20:37:43Z |
| _version_ |
1796150700206456832 |