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Room-Temperature Disorder-Driven Nonlinear Transport in Topological Materials

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arxiv 2506.13869 v1 pith:5KEYB5Y7 submitted 2025-06-16 cond-mat.mes-hall

Rhonald Burgos Atencia , Shanshan Liu , Kian Ping Loh , Dimitrie Culcer This is my paper
classification cond-mat.mes-hall
keywords nonlinearscatteringtemperaturebetajumpmaterialsroomside
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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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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Inter-band coherence effects in disordered crystals: beyond the non-crossing approximation

    cond-mat.mes-hall 2026-06 unverdicted novelty 6.0 of 10

    Extends density-matrix kinetic theory beyond non-crossing approximation to fourth-order disorder, yielding extrinsic tau^0 contributions to anomalous Hall conductivity in the 2D Dirac model.

  2. Probing Hidden Symmetry and Altermagnetism with Sub-Picometer Sensitivity via Nonlinear Transport

    cond-mat.str-el 2025-10 unverdicted novelty 6.0 of 10

    Nonlinear transport reveals a previously undetected lower-symmetry phase and altermagnetism in Ca3Ru2O7 below 48 K via longitudinal NLR and nonlinear Hall effect linked to a ~0.1 pm lattice distortion.

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