Ground states of a generalized Frenkel-Kontorova model
文献类型：期刊论文
| 作者 | A. G. Xu ; G. R. Wang ; S. G. Chen ; Z. R. Yang |
| 刊名 | Communications in Theoretical Physics
 |
| 出版日期 | 2000 |
| 卷号 | 34期号:3页码:419-432 |
| 关键词 | FK model CI transition coherent state degree-of-freedom nonconvex interactions transversal degree critical-behavior devils staircase kinks transition analyticity potentials mechanism |
| ISSN号 | 0253-6102 |
| 中文摘要 | We studied the modulated structures and commensurate-incommensurate transitions in a generalized Frenkel-Kontorova (FK) model where the chain is composed of three kinds of atoms. For the classical ground states, the phase diagram and the phonon spectrum show the multi-atomic effects. For the quantum ground states, the multi-atomic effects are reflected by the distribution of atoms in external potential, the phase diagram, the correspondences between the ground states and the orbits of the area-preserving maps, as well as the phonon spectrum and coherence length. For the most incommensurate structure, the critical point K-c at which the transition by breaking of analyticity occurs does not vary monotonically with A. For the case of mu (A) = mu (B) = 1 and mu (C) = 2, with the increasing of (h) over bar, the critical point K-c first decreases, then increases. The minimum value of K-c occurs at nearly (h) over bar = 0.035. When K < K-c, the phonon gap |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/37218]  |
| 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 | A. G. Xu,G. R. Wang,S. G. Chen,et al. Ground states of a generalized Frenkel-Kontorova model[J]. Communications in Theoretical Physics,2000,34(3):419-432. |
| APA | A. G. Xu,G. R. Wang,S. G. Chen,&Z. R. Yang.(2000).Ground states of a generalized Frenkel-Kontorova model.Communications in Theoretical Physics,34(3),419-432. |
| MLA | A. G. Xu,et al."Ground states of a generalized Frenkel-Kontorova model".Communications in Theoretical Physics 34.3(2000):419-432. |
入库方式： OAI收割
来源：金属研究所
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