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Study of the ordinary size effect in the electrical conductivity of Bi nanowires

机译:Bi纳米线电导率中普通尺寸效应的研究

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摘要

The temperature dependence of the electrical conductivity of a cylindrical nanowire is investigated. The calculations are performed for thin wires with an ellipsoidal Fermi surface, based on the Fuchs-Sondheimer boundary scattering theory given for thin metallic films with spherical Fermi surfaces. It is seen that the conductivity depends on the process of scattering of the carrier on the surface, and on the thickness of the wire for wires with diameters smaller than the carrier's mean free path. The temperature dependence of the electrical resistivity of a Bi nanowire is calculated and compared with the experimental results reported by Gurvitch, where good agreement is observed.
机译:研究了圆柱形纳米线的电导率的温度依赖性。基于具有球形费米表面的金属薄膜的Fuchs-Sondheimer边界散射理论,对椭圆形费米表面的细线进行了计算。可以看出,电导率取决于载体在表面上的散射过程,并且取决于直径小于载体平均自由程的导线的导线厚度。计算了Bi纳米线的电阻率的温度依赖性,并将其与Gurvitch报道的实验结果进行了比较,观察到了很好的一致性。

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