| 具有电子间相互作用的准一维体系的介电损耗 |
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| 引用本文： | 方忠,刘祖黎,姚凯伦.具有电子间相互作用的准一维体系的介电损耗[J].华中科技大学学报(自然科学版),1997(Z1). |
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| 作者姓名： | 方忠 刘祖黎 姚凯伦 |
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| 作者单位： | Fang Zhong Dept. of Phys.，HUST，Wuhan 430074，China. Liu Zuli Yao Kailun |
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| 基金项目： | 国防预研基金,国家自然科学基金 |
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| 摘 要： | 把电磁场理论应用到准一维材料中．考虑到一维链状体系的链节内成键原子间的作用和沿链的电子间的长程相互作用，导出了随频率变化的介电函数和介电损耗的微观计算公式，并且用数值计算的方法研究了吸收谱和频率的关系
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| 关 键 词： | 电磁场理论 准一维体系 介电损耗 |
The Dielectric Loss in Quasi One Dimension Systems with Electron Electron Interaction |
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| Fang Zhong Dept. of Phys.,HUST,Wuhan ,China. Liu Zuli Yao Kailun.The Dielectric Loss in Quasi One Dimension Systems with Electron Electron Interaction[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1997(Z1). |
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| Authors: | Fang Zhong Dept of Phys HUST Wuhan China Liu Zuli Yao Kailun |
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| Institution: | Fang Zhong Dept. of Phys.,HUST,Wuhan 430074,China. Liu Zuli Yao Kailun |
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| Abstract: | By taking into consideration the interaction between bonded atoms in the chain of the quasi one dimension al systems and the long range electron electron interaction along the chain, microscopic the frequency dependent dielectric function and dielectric loss have been derived using the electromagnetic field theory. The numerical method is used to calculate the relation between the absorption spectrum and the frequency. Results show that the short range coupling between bonded atoms (or impurity ions) plays the main role for the amplitude and the width of absorption while the long range coupling tends to drift the peak toward the lower frequency or higher frequency side, which is helpful to the improvement of the absorption characteristics of hte material concerned. |
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| Keywords: | electromagnetic field theory quasi one dimensional system dielectric loss |
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