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首页> 外文期刊>Magnetics, IEEE Transactions on >Effect of Shape and Annealing on the Giant Magnetoimpendence Properties of FeCoSiB Ribbon
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Effect of Shape and Annealing on the Giant Magnetoimpendence Properties of FeCoSiB Ribbon

机译：形状和退火对FeCoSiB带的巨磁阻抗性能的影响

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摘要

The annealing process and shape are expected to significantly affect the magnetic properties and giant magnetoimpedance (GMI) effect of magnetic amorphous ribbon. Here, the GMI effect in the annealed samples of FeCoSiB with different aspect ratios was studied at the frequency range between 1 and 40 MHz. Magnetic properties and microstructures of samples were investigated by vibrating sample magnetometer and X-ray diffraction. With the increasing of annealing temperature, the coercivity was decreased from 1.1 Oe at room temperature to 0.18 Oe at 400 °C annealing temperature, and the sensitivity of GMI effect increased from 10%/Oe to 140%/Oe. The aspect ratio of the ribbon was found to affect the excitation frequency, which leads the GMI effect to the maximum due to the shape induced demagnetization field, regardless of the annealing temperature.
机译：退火工艺和形状预计将显着影响磁性非晶带的磁性能和巨磁阻抗（GMI）效应。在此，研究了在1至40 MHz的频率范围内，不同纵横比的FeCoSiB退火样品中的GMI效应。通过振动样品磁力计和X射线衍射研究了样品的磁性能和微观结构。随着退火温度的升高，矫顽力从室温的1.1 Oe降低到400°C的0.18 Oe，GMI效应的敏感性从10％/ Oe升高到140％/ Oe。发现带材的长宽比会影响激发频率，无论退火温度如何，由于形状感应的去磁场，导致GMI效应达到最大。

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