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    董正超

    SURFACE AND INTERFACES SCATTERING EFFECT ON QUANTUM TRANSPORT IN MULTILAYERED CYLINDRICAL WIRE

    DONG ZHENG-CHAO
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    • 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.
      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.
        • 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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      出版历程
      • 收稿日期:1998-05-22
      • 刊出日期:1999-01-20

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