Highly symmetric discrete breather in a two-dimensional Morse crystal

Highly symmetric discrete breather in a two-dimensional Morse crystal

Dades bibliogràfiques
Parent link:JETP Letters: Scientific Journal.— , 1996-
Vol. 103, iss. 4.— 2016.— [P. 277-281]
Autor corporatiu: Национальный исследовательский Томский политехнический университет Юргинский технологический институт (филиал) Кафедра естественного научного образования
Altres autors: Korznikova E. A., Fomin S. Yu., Soboleva E. G. Elvira Gomerovna, Dmitriev S. V.
Sumari:Title screen
It has been shown recently that a moving discrete breathers localized in one close-packed atomic row can be excited in a two-dimensional monoatomic crystal with Morse interaction. In this work, a motionless discrete breathers having the threefold symmetry axis has been excited in the same crystal. The initial conditions for the excitation of such discrete breathers are set by the superposition of a bell-shaped function on a planar nonlinear phonon mode with the wave vector lying at the edge of the Brillouin zone. In addition, the displacement of the centers of atomic oscillations from the center of the discrete breathers owing to the asymmetry of the Morse potential is taken into account. The results obtained make it possible to approach the search for highly symmetric discrete breathers in three-dimensional crystals.
Режим доступа: по договору с организацией-держателем ресурса
Idioma:anglès
Publicat: 2016
Col·lecció:Nonlinear Phenomena
Matèries:
электронный ресурс
труды учёных ТПУ
кристаллы
бризеры
Accés en línia:http://dx.doi.org/10.1134/S0021364016040081
Format: Electrònic Capítol de llibre
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=648860

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