| 具有在位势的一维双原子链中杂质引起的对称局域模 |
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| 引用本文： | 吕岿,童国平,毛杰健.具有在位势的一维双原子链中杂质引起的对称局域模[J].大学物理,2012,31(5):21-23. |
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| 作者姓名： | 吕岿 童国平 毛杰健 |
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| 作者单位： | 1. 江西上饶师范学院物电系,江西上饶,334001
2. 浙江师范大学数理与信息工程学院,浙江金华,321004 |
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| 基金项目： | 江西省自然科学基金项目 |
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| 摘 要： | 对具有在位势且含杂质的一维双原子链的晶格振动方程组进行求解,得到了局域振动的解析解,给出了在位势对局域振动影响的基本特征,并简要讨论了对称局域模的存在形式.
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| 关 键 词： | 杂质 在位势 局域模 |
The symmetric local vibration mode induced by an impurity atom in a diatomic linear chain with on-site potential |
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| LV Kui
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TONG Guo-ping
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MAO Jie-jian.The symmetric local vibration mode induced by an impurity atom in a diatomic linear chain with on-site potential[J].College Physics,2012,31(5):21-23. |
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| Authors: | LV Kui TONG Guo-ping MAO Jie-jian |
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| Institution: | 1(1.Department of Physics,Shangrao Normal University,Shangrao,Jiangxi 334001,China; 2.College of Mathematics,Physics and Information Engineering,Zhejiang Normal University,Jinhua,Zhejiang 321004,China) |
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| Abstract: | The lattice vibration equations of a diatomic chain with an impurity atom and on-site potential are solved.The analytic solutions of local vibration are obtained.The basic features of the effect of on-site potential on the local vibration are given,and the existence forms of symmetric localized mode are also discussed. |
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| Keywords: | impurity on-site potential localized mode |
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