Low-temperature annealing regulates magneto-acoustic coupling for enhanced FeCoSiB/Ti SAW magnetic field sensor performance
Year: 2025
Type: article
Abstract: effect improves to 49.5%, and the sensitivity of the SAW magnetic field sensor can be enhanced by 51%. The experimental results verified the theoretical analysis results. After annealing at 100 °C, the sensor sensitivity increased from 156.34° per mT to 236.19° per mT, the temperature drift coefficient decreased by 62.5%, and the insertion loss of the sensor device remained almost unchanged. In contrast, high-temperature annealing at 200 °C/300 °C caused significant lattice distortion and increased acoustic propagation loss, leading to a sharp deterioration in sensitivity (8.67° per mT). This study provides theoretical guidance and experimental evidence for the preparation of SAW magnetic field sensors with high sensitivity and excellent stability.
Source: Nanoscale Advances
DOI: 10.1039/d5na00724k
Authors: Yutong Wu, Yining Yin, Baile Cui, Yana Jia, Hongjie Huang, Hao Wu, Feiming Bai, Wen Wang, Xufeng Xue
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,962
Awards: G6325377370, G8063304608, G860464376
OpenAlex ID: W4416940715