Sensitivity of the anomalous Hall effect to disorder correlations
Sensitivity of the anomalous Hall effect to disorder correlations
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DOI：
10.1103/physrevb.96.235148
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发表时间：
2017-10
影响因子：
3.7
通讯作者：
I. Ado;I. Dmitriev;P. Ostrovsky;M. Titov
中科院分区：
文献类型：
--
作者：
I. Ado;I. Dmitriev;P. Ostrovsky;M. Titov
在具有任意关联函数的弱高斯自旋无关无序的二维Dirac费米子模型中，计算了纵向霍尔电导和反常霍尔电导。反常霍尔电导对随机势的关联性质高度敏感，如关联长度，而与积分无序强度无关。这一性质超越了狄拉克模型，使反常霍尔效应成为探索无序关联的有趣工具。
Both longitudinal and anomalous Hall conductivities are computed in the model of two-dimensional Dirac fermions with a mass in the presence of weak Gaussian spin-independent disorder with an arbitrary correlation function. The anomalous Hall conductivity is shown to be highly sensitive to the correlation properties of the random potential, such as the correlation length, while it remains independent of the integral disorder strength. This property extends beyond the Dirac model making the anomalous Hall effect an interesting tool to probe disorder correlations.