Nonlinear Hall resistance and temperature-dependent behavior in Pt/RuO2 bilayer structures for high-precision temperature sensing applications
Year: 2025
Type: article
Abstract: In this work, we report the experimentally observed nonlinear dependence of Hall resistance on current in a Pt/RuO2 bilayer structures. Temperature-dependent measurements reveal that the Hall resistance is highly sensitive to temperature variations. The first-principles calculations suggest that the nonlinear dependence of Hall resistance on current may arise from changes in the Berry curvature induced by the electric field. Based on Pt/RuO2(101) films, we developed a temperature sensor with a wide range, high precision, and excellent reliability. This work provides strategies for temperature sensing and promotes the future application of Hall temperature sensors.
Source: Applied Physics Express
Authors: Jie Chen, Sixin Kang, Gaocheng Zhan, Shuhao Gu, Jingzhe Jiang, Wentao Wang, Gongwei Hu, Yiman Liu, Min Liu, Liqing Pan
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,365
Awards: G354675428, G6505085357
OpenAlex ID: W4408864036