| 多层金属圆柱线中量子输运的表面和界面散射效应 |
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| 引用本文： | 董正超.多层金属圆柱线中量子输运的表面和界面散射效应[J].物理学报,1999,48(1):127-133. |
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| 作者姓名： | 董正超 |
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| 作者单位： | 淮阴师范学院物理系，淮阴 223001 |
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| 基金项目： | 江苏省教育委员会基金(批准号：JW970141)资助的课题. |
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| 摘 要： | 考虑了量子尺寸效应以及来自杂质、粗糙表面和粗糙界面三方面的散射，运用量子统计的格林函数方法和久保公式，计算多层金属圆柱线中的各种散射电导率.计算结果表明，在杂质、表面和界面的弱散射极限下，系统总电导率等于各个子能级通道的电导率之和，而各子能级通道中杂质、表面和界面产生的散射率是可相加的.
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| 关 键 词： | 量子输运 表面散射 金属圆柱线 界面散射 |
| 收稿时间： | 1998-05-22 |
SURFACE AND INTERFACES SCATTERING EFFECT ON QUANTUM TRANSPORT IN MULTILAYERED CYLINDRICAL WIRE |
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| DONG ZHENG-CHAO.SURFACE AND INTERFACES SCATTERING EFFECT ON QUANTUM TRANSPORT IN MULTILAYERED CYLINDRICAL WIRE[J].Acta Physica Sinica,1999,48(1):127-133. |
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| Authors: | DONG ZHENG-CHAO |
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| Abstract: | Taking into account the quantum size effects and considering three types of scattering from bulk impurities,rough surface and rough interfaces,we use the quantum-statistical Green's function approach to calculate the conductivity in multilayered cylindrical wire.It is found that in the lowest-order approximation of impurities,surface and interfaces scattering,the total conductivity is given by a sum of conductivities of all the subbands; and the scattering rates for the individual subbands due to the impurities,surface and interfaces are additive. |
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