Data underlying the publication: Third-order nonlinear Hall effect in Altermagnets RuO₂

This dataset supports the study of the third-order nonlinear Hall effect in the altermagnetic RuO₂. High-quality RuO₂ thin films were epitaxially grown on TiO₂ substrates. Nonlinear transport measurements were performed using a low-frequency lock-in technique (166 Hz) with an AC current. The data include first and third harmonic voltage–current traces when the current is applied along different crystal orientations , and the angle dependent third-harmonic voltage-current curves in RuO₂(001). This dataset provides reproducible evidence of the symmetry-dependent nonlinear Hall response characteristic of altermagnetic RuO₂.

本数据集用于支持对交变磁（altermagnetic）二氧化钌（RuO₂）中的三阶非线性霍尔效应的研究。研究中通过外延生长法在二氧化钛（TiO₂）衬底上制备得到高质量RuO₂薄膜。非线性输运测量采用低频锁相技术（166 Hz）结合交流电流开展。数据集包含沿不同晶体取向通入电流时的一次及三次谐波电压-电流轨迹，以及RuO₂(001)晶面下的角度依赖型三次谐波电压-电流曲线。本数据集为交变磁RuO₂中依赖于对称性的非线性霍尔响应特性提供了可复现的实验证据。