| 不同边界条件下一维双原子链的晶格振动 |
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| 引用本文： | 田强,张启义.不同边界条件下一维双原子链的晶格振动[J].大学物理,2003,22(2):7-10,30. |
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| 作者姓名： | 田强 张启义 |
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| 作者单位： | 北京师范大学,物理系,北京,100875 |
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| 基金项目： | 教育部高等学校骨干教师资助计划项目 |
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| 摘 要： | 在自由边界条件和驻波边界条件下，讨论分析了一维双原子链晶格振动的振动模和色散关系，并与周期性边界条件下的结果进行了比较；明确了在不同边界条件下讨论实际原子链晶格振动的振动模和色散关系，其结果是相同的。
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| 关 键 词： | 一维双原子链 晶格振动 边界条件 振动模 色散关系 |
| 文章编号： | 1000-0712(2003)02-0007-04 |
The lattice vibration of one-dimensional diatomic chain under different boundary conditions |
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| TIAN Qiang,ZHANG Qi yi.The lattice vibration of one-dimensional diatomic chain under different boundary conditions[J].College Physics,2003,22(2):7-10,30. |
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| Authors: | TIAN Qiang ZHANG Qi yi |
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| Abstract: | The lattice vibration of one dimensional diatomic chain is analyzed under the free boundary condition and the stationary wave boundary condition.The vibrational mode and dispersion relation are the same with those under the periodic boundary condition.In conclusion,the results of lattice vibration under the periodic boundary condition are also true for other boundary conditions. |
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| Keywords: | lattice vibration boundary condition vibrational mode dispersion relation |
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