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arXiv · 2506.13869

Room-Temperature Disorder-Driven Nonlinear Transport in Topological Materials

Rhonald Burgos Atencia·Shanshan Liu·Kian Ping Loh·Dimitrie Culcer
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Abstract

Recent experiments have reported nonlinear signals in topological materials up to room temperature. Here we show that this response stems from extrinsic spin-orbit contributions to \textit{both} impurity and phonon scattering. While skew scattering dominates at low temperatures, the side jump contribution $\propto \tau/\tau_\beta$, where $\tau$, $\tau_\beta$ are the momentum and skew scattering times respectively. Consequently side jump exhibits a weak temperature dependence and remains sizable at room temperature. Our results provide a roadmap for engineering nonlinear transport at ambient conditions.

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Rhonald Burgos Atencia, Shanshan Liu, Kian Ping Loh, Dimitrie Culcer. 2025-06-16. Room-Temperature Disorder-Driven Nonlinear Transport in Topological Materials. https://arxiv.org/abs/2506.13869

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