物理
Berry连接和曲率
凝聚态物理
费米子
偶极子
散射
霍尔效应
订单(交换)
量子力学
数学物理
电阻率和电导率
几何相位
财务
经济
作者
Rhonald Burgos Atencia,Di Xiao,Dimitrie Culcer
出处
期刊:Cornell University - arXiv
日期:2023-09-07
标识
DOI:10.1103/physrevb.108.l201115
摘要
The study of the non-linear anomalous Hall effect (NLAHE) in $\mathcal{P}\mathcal{T}$-symmetric systems has focussed on intrinsic mechanisms. Here we show that disorder contributes substantially to NLAHE and often overwhelms intrinsic terms. We identify terms to zeroth order in the disorder strength involving the Berry curvature dipole, skew scattering and side-jump, all exhibiting a strong peak as a function of the Fermi energy, a signature of interband coherence. Our results suggest NLAHE at experimentally relevant transport densities in $\mathcal{P}\mathcal{T}$-symmetric systems is likely to be extrinsic.
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