Highly symmetric discrete breather in a two-dimensional Morse crystal; JETP Letters; Vol. 103, iss. 4
| Parent link: | JETP Letters: Scientific Journal.— , 1996- Vol. 103, iss. 4.— 2016.— [P. 277-281] |
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| Müşterek Yazar: | |
| Diğer Yazarlar: | , , , |
| Özet: | 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 |
| Dil: | İngilizce |
| Baskı/Yayın Bilgisi: |
2016
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| Seri Bilgileri: | Nonlinear Phenomena |
| Konular: | |
| Online Erişim: | http://dx.doi.org/10.1134/S0021364016040081 |
| Materyal Türü: | MixedMaterials Elektronik Kitap Bölümü |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=648860 |
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| 200 | 1 | |a Highly symmetric discrete breather in a two-dimensional Morse crystal |f E. A. Korznikova [et al.] | |
| 203 | |a Text |c electronic | ||
| 225 | 1 | |a Nonlinear Phenomena | |
| 300 | |a Title screen | ||
| 320 | |a [References: 48 tit.] | ||
| 330 | |a 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. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t JETP Letters |o Scientific Journal |d 1996- | ||
| 463 | |t Vol. 103, iss. 4 |v [P. 277-281] |d 2016 | ||
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| 701 | 1 | |a Korznikova |b E. A. | |
| 701 | 1 | |a Fomin |g S. Yu. | |
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