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dielectric function
相关语句
  “dielectric function”译为未确定词的双语例句
    CLASSICAL SIZE EFFECTS ON DIELECTRIC FUNCTION OF METAL CYLINDER WITH INFINITE LENGTH
    无界金属圆柱介电函数的经典尺寸效应
短句来源
  相似匹配句对
    CLASSICAL SIZE EFFECTS ON DIELECTRIC FUNCTION OF METAL CYLINDER WITH INFINITE LENGTH
    无界金属圆柱介电函数的经典尺寸效应
短句来源
    Shrinkage Function on Gate
    试论浇口在铸铁件补缩中的能动作用
短句来源
    insulation resistance and dielectric intensity;
    绝缘电阻和介电强度;
短句来源
    and function model of the planning system.
    冲模设计任务规划系统的功能模型
短句来源
    ③the influence of hardness on the dielectric strength ;
    ③硬度与耐电压强度的关系;
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  dielectric function
The calculations are based on the exactly solved model of a sharp metal/electrolyte interface, the model of a Born sphere for the ion, and the three-mode approximation for the dielectric function of the solvent.
      
Parameters of the analytical expression used for the dielectric function ε(k) of the solvent are selected so as to reproduce the results of calculations of the ε(k) function obtained by a molecular dynamics method.
      
The complex dielectric function of the films was determined from the experimental data by dispersion analysis of the reflection spectra.
      
This effect is related to the fact that a contribution to the dielectric function of slow ions, determining the scattering amplitude, depends on both spatial and frequency dispersion.
      
The k-dependent semiclassical dielectric function is employed instead of the Lindhard-Mermin expression.
      
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Dielectric function (DF) of metal cylinder with infinite length has been calculated using nonequilibrium statistical mechanics. The results show that the intrinsic DF of metal will be changed if the cylinder's surface is inelastic for electron scattering. As the radius of the cylinder decreases to the range of the electron mean free path (MFP), DF deviates from the bulk value and depends on the position in the cylinder gradually. The relation between DF and the position is complicated except when the...

Dielectric function (DF) of metal cylinder with infinite length has been calculated using nonequilibrium statistical mechanics. The results show that the intrinsic DF of metal will be changed if the cylinder's surface is inelastic for electron scattering. As the radius of the cylinder decreases to the range of the electron mean free path (MFP), DF deviates from the bulk value and depends on the position in the cylinder gradually. The relation between DF and the position is complicated except when the radius is much smaller than MFP. Size effects may increase both real part ε' and imaginary part ε'' of DF and raise effectively the absolute ratio value of ε" to ε'.The radial distribution of oscillatory form of DF is discovered in the range of high frequence due to size effects.

用非平衡统计计算了无界金属圆柱的介电函数结果表明,电子非弹性散射的柱体表面会影响金属的内禀介电函数当往体半径减小到可与电子的平均自由程相比拟时,介电函数逐渐偏离块体值而依赖于局城位置.除了半径远小于电子平均自由程的区域,介电函数的位置依赖关系十分复杂,尺寸效应可能使介电函数实部和虚部的绝对值都增大;尺寸效应显著地增加介电常数虚部与实部的相对值大小.在高频区域,尺寸效应使得介电函数具有振荡形式的径向分布

The nonlocal empirical pseudopotential method has been used to calculate the electronic structure of GaN, AlN and their alloys Ga 1 x Al x N .The imaginary part of the dielectric function of alloys Ga 1 x Al x N is also calculated with the virtual crystal approximation,and its trend versus Al fraction x are also discussed.

闪锌矿结构GaN、AlN和合金Ga1-xAlxN光学性质计算何国敏王仁智郑永梅(厦门大学物理学系厦门361005)随着人们对发光二极管和半导体激光器等光电器件的深入研究,工作于蓝紫波段的半导体材料受到普遍的重视.宽带隙半导体GaN和AlN正是目前蓝紫...

The magneto\|optic and optical properties of evaporated and sputtered Ag were studied experimentally and theoretically.An apparent Kerr effect near 3 9?eV was observed at room temperature.It was found to originate from the small off\|diagonal term of dielectric function tensor,induced by the free electron movement under an applied magnetic field.The special optical properties near 3 9?eV due to the strong plasma absorption affect the line shape of the spectrum.The simulations,based on the classic Drude...

The magneto\|optic and optical properties of evaporated and sputtered Ag were studied experimentally and theoretically.An apparent Kerr effect near 3 9?eV was observed at room temperature.It was found to originate from the small off\|diagonal term of dielectric function tensor,induced by the free electron movement under an applied magnetic field.The special optical properties near 3 9?eV due to the strong plasma absorption affect the line shape of the spectrum.The simulations,based on the classic Drude model,show the effective electron mass m *=0 8 m 0.This provides a new method to experimentally determine the effective electron mass and other parameters.

用椭圆偏振光谱仪和磁光谱仪研究了热蒸发和溅射法制备的Ag膜的光学和磁光性质 .在 1 0T的外磁场作用下 ,贵金属Ag在 3 9eV附近具有可观的磁光效应 .分析发现主要来源于两个方面 :1)自由电子在外磁场中回旋共振引起小的非对角元 ;2 )Ag本身在 3 9eV附近的光学性质 .数值计算表明磁光克尔效应θK 和εK 的峰值随ωc 的增加而增大 .对磁光实验数据拟合的有效质量与光学的相应数值基本相符 ,这为自由电子有效质量的测量提供了一种新方法 .

 
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