Magnetostrictive effect in micro-dotted FeCo film coated surface acoustic wave devices

Magnetostrictive effect in micro-dotted FeCo film coated surface acoustic wave devices
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微点FeCo薄膜表面声波器件的磁致伸缩效应

DOI:
10.1088/1361-665x/aae011
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发表时间:
2018-09
影响因子:
4.1
通讯作者:
Yong Liang
Yong Liang
中科院分区:
材料科学3区
文献类型:
--
作者:
Wen Wang;Yana Jia;Xufeng Xue;Yong Liang

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通过使用有限元分析提取的模式参数的特定耦合求解耦合方程,证明了微点 FeCo 薄膜涂层表面声波 (SAW) 器件中的磁致伸缩效应。这项工作中提出的 FeCo 薄膜上的点状图案通过充分释放磁致伸缩 FeCo 薄膜的内矫顽力,有助于抑制磁滞效应。通过对具有沿 SAW 传播路径沉积的 FeCo 点的构造的 SAW 磁性器件进行表征,理论论证得到了很好的证实。通过表征所制备的 FeCo 点涂层 SAW 磁性器件,观察到磁滞现象的抑制显着改善,成功实现了 21.17 kHz mT−1 的更高磁灵敏度和 0.82% 的更低磁滞误差。
The magnetostrictive effect in micro-dotted FeCo film coated surface acoustic wave (SAW) devices was demonstrated by solving coupling equations using the specific coupling of modes parameters extracted by FEM analysis. Dotted-pattern on FeCo thin-film proposed in this work contributes well to suppression in hysteresis effect by fully releasing the internal coericivity of the magnetistrictive FeCo thin-film. The theoretical demonstration was confirmed well by characterizing the constructed SAW magnetic devices with FeCo dots depositing along the SAW propagation path. Significantly improvements on suppression of hysteresis phenomenon were observed by characterizing the prepared FeCo dots coated SAW magnetic devices, higher magneto-sensitivity of 21.17 kHz mT−1, and lower hysteresis error of 0.82% were achieved successfully.
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发表时间: 2014
期刊: Procedia Engineering
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