Quantum Interference and the Giant Hall Effect in Percolating Systems
Quantum Interference and the Giant Hall Effect in Percolating Systems
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DOI：
10.1103/physrevb.66.075309
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发表时间：
2002-08
影响因子：
3.7
通讯作者：
C. Wan;P. Sheng
中科院分区：
文献类型：
--
作者：
C. Wan;P. Sheng
我们表明，在金属渗流网络中，载流子的波动性质可以显着改变霍尔效应的经典图像，特别是在金属浓度范围 $x\ensuremath{\approx}{x}_{q},$ 中，其中 x 表示金属体积，${x}_{q}$ 表示量子渗流阈值。基于局域量子干涉效应模型的计算表明，对（普通）巨型霍尔效应的最新实验结果给出了一致和定量的解释。
We show that in metallic percolating networks the wave nature of the charge carriers can significantly modify the classical picture of the Hall effect, especially in the metal concentration range $x\ensuremath{\approx}{x}_{q},$ where x denotes the metal volume, and ${x}_{q}$ the quantum-percolation threshold. Calculations based on the model of local quantum interference effect are shown to give a consistent and quantitative account of the recent experimental findings on the (ordinary) giant Hall effect.