| 氢键链中孤子与杂质的相互作用 |
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| 引用本文： | 袁德荣.氢键链中孤子与杂质的相互作用[J].湖北大学学报(自然科学版),1997,19(1):48-52. |
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| 作者姓名： | 袁德荣 |
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| 作者单位： | 湖北大学物理系 |
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| 摘 要： | 研究了带有对称双阱势的氢键链中孤子与杂质的相互作用，排斥型杂质对孤子提供一个势垒，吸引型杂质对孤子提供一个势阱，并且吸引型杂质获取孤子的能量形成局域振荡模，被杂质散射的孤子存在一个临界速度，只有入射速度大于临界速度的孤子才能穿越排斥型杂质，或者不被吸收型杂质捕获。
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| 关 键 词： | 氢键链 孤子 杂质 相互作用 晶体 吸引型 |
SOLITONIMPURITY INTERACTION IN A HYDROGENBONDED CHAIN |
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| Yuan Derong.SOLITONIMPURITY INTERACTION IN A HYDROGENBONDED CHAIN[J].Journal of Hubei University(Natural Science Edition),1997,19(1):48-52. |
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| Authors: | Yuan Derong |
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| Abstract: | The interaction of the soliton with an impurity is studied in a hydrogenbonded chain with symmetric doublewell potential. A repulsiontype impurity offer a potential barrier for the incident soliton, but an attractiontype impurity offer a potential well for the incident soliton and acquire energy of the soliton so that a localized oscillation mode is formed. There is a critical velocity for the soliton scattering by impurities. The soliton which possess higher velocity than the critical one may pass through a repulsiontype impurity or can't be captured by an attractiontype impurity. |
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| Keywords: | Hydrogenbonded chain Soliton Localized impurity mode Critical velocity |
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