Asymmetry localized modes in an anharmonic sphalerite-structure lattice
文献类型：期刊论文
| 作者 | G. H. Zhou ; Q. L. Xia ; L. X. Pan ; J. R. Yan |
| 刊名 | Chinese Physics Letters
 |
| 出版日期 | 2000 |
| 卷号 | 17期号:12页码:899-901 |
| 关键词 | gaas/alas superlattice electrons |
| ISSN号 | 0256-307X |
| 中文摘要 | We numerically study the intrinsic localized vibrational modes in a diatomic chain with different masses and alternating force constants between nearest neighbors. This model simulates a row of atoms in the [111] direction of sphalerite-structure crystal. We found that the harmonic and quartic anharmonic terms in the nearest-neighbor interaction potential produce the intrinsic localized modes with frequencies above the optical branch or in the gap of the linear spectrum, the distribution patterns of atom amplitudes are asymmetry with a form of quasi-even or quasi-odd-parity, and the inclusion of cubic term in the potential lowers the frequencies of the modes and introduces static displacements for the atoms. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/37292]  |
| 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,L. X. Pan,et al. Asymmetry localized modes in an anharmonic sphalerite-structure lattice[J]. Chinese Physics Letters,2000,17(12):899-901. |
| APA | G. H. Zhou,Q. L. Xia,L. X. Pan,&J. R. Yan.(2000).Asymmetry localized modes in an anharmonic sphalerite-structure lattice.Chinese Physics Letters,17(12),899-901. |
| MLA | G. H. Zhou,et al."Asymmetry localized modes in an anharmonic sphalerite-structure lattice".Chinese Physics Letters 17.12(2000):899-901. |
入库方式： OAI收割
来源：金属研究所
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