Nonlinear Hall resistance and temperature-dependent behavior in Pt/RuO2 bilayer structures for high-precision temperature sensing applications
In this work, we report the experimentally observed nonlinear dependence of Hall resistance on current in a Pt/RuO _2 bilayer structures. Temperature-dependent measurements reveal that the Hall resistance is highly sensitive to temperature variations. The first-principles calculations suggest that t...
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| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2025-01-01
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| Series: | Applied Physics Express |
| Subjects: | |
| Online Access: | https://doi.org/10.35848/1882-0786/adc5d9 |
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| Summary: | In this work, we report the experimentally observed nonlinear dependence of Hall resistance on current in a Pt/RuO _2 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/RuO _2 (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. |
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| ISSN: | 1882-0786 |