Localized modes in a one-dimensional sphalerite-structure lattice with anharmonicity
文献类型：期刊论文
| 作者 | G. H. Zhou ; Q. L. Xia ; J. R. Yan |
| 刊名 | European Physical Journal B
 |
| 出版日期 | 2001 |
| 卷号 | 24期号:3页码:297-304 |
| 关键词 | nonlinear lattice diatomic chain solitons temperature envelope |
| ISSN号 | 1434-6028 |
| 中文摘要 | The nonlinear localized vibrational modes of a one-dimensional atomic chain with two periodically alternating masses and force constants are analytically investigated using a discrete multiple-scale expansion method. This model simulates a row of atoms in the <1 1 1>-direction of sphalerite, or zinc blende, crystals. Owing to the structural asymmetry; the vibrational amplitude is governed by a perturbed nonlinear Schrodinger equation instead of the standard one found in one-dimensional lattices with two alternating masses but uniform force constant. Although the stationary localized modes with carrier wavevector at the Brillouin-zone boundary are similar to those of ionic lattices, the moving localized modes with wavevectors within the zone are different owing to the perturbation. The calculation shows that the height of the moving localized modes in this lattice dampens with time. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/36954]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | G. H. Zhou,Q. L. Xia,J. R. Yan. Localized modes in a one-dimensional sphalerite-structure lattice with anharmonicity[J]. European Physical Journal B,2001,24(3):297-304. |
| APA | G. H. Zhou,Q. L. Xia,&J. R. Yan.(2001).Localized modes in a one-dimensional sphalerite-structure lattice with anharmonicity.European Physical Journal B,24(3),297-304. |
| MLA | G. H. Zhou,et al."Localized modes in a one-dimensional sphalerite-structure lattice with anharmonicity".European Physical Journal B 24.3(2001):297-304. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。