| 在位势对于一维双原子链晶格振动长光学模的影响 |
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| 引用本文： | 潘学琴,田 强.在位势对于一维双原子链晶格振动长光学模的影响[J].河北工业科技,2011,28(2):80-81,108. |
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| 作者姓名： | 潘学琴 田 强 |
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| 作者单位： | 1. 装甲兵工程学院基础部,北京,100072
2. 北京师范大学物理系,北京,100875 |
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| 基金项目： | 教育部国家理科基地创建名牌课程项目，北京市精品课程(固体物理学)建设资助项目 |
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| 摘 要： | 在简谐近似下,求解具有在位势的一维双原子链晶格动力学方程,得出并分析新的色散关系.讨论了具有在位势的一维双原子链晶格振动的高频支长波模振动图像.
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| 关 键 词： | 一维双原子链晶格 在位势 晶格振动图像 |
| 收稿时间： | 2010/10/14 0:00:00 |
| 修稿时间： | 2010/12/24 0:00:00 |
Oscillation of one-dimension diatomic lattice with on-site potential |
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| PAN Xue-qin and TIAN Qiang.Oscillation of one-dimension diatomic lattice with on-site potential[J].Hebei Journal of Industrial Science & Technology,2011,28(2):80-81,108. |
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| Authors: | PAN Xue-qin and TIAN Qiang |
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| Institution: | 1.Department of Fundamental Courses,AAFe,Beijing 100072,China;2.Department of Physics,Beijing Normal University,Beijing 100875,China) |
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| Abstract: | In solution of the dynamical equation of a one-dimensional diatomic lattice,the dispersion law is obtained under the harmonic approximation,and the frequency of "optical" branch at the center of Brillioun zone is changed with on-site potential.The oscillation images are analyzed.In the case of long wavelength "optical" modes,the amplitudes of the two atoms within each cell are not identical.The long wavelength "optical" modes are different from the one of zero on-site potential. |
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| Keywords: | one-dimension diatomic lattice on-site potential lattice oscillation image |
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