Kerr-Imaged Edge-Curling Wall Effects of Narrow Magnetic Cores

El-Ghazaly; A.; Mullenix; J.M.; White; R.M.; Wang; S.X.

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Kerr-Imaged Edge-Curling Wall Effects of Narrow Magnetic Cores

机译：窄磁芯的Kerr成像边缘弯曲壁效应

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Magnetic cores produced by laminating alternating magneticonmagnetic layers have been shown to eliminate closure domains by linking flux vertically between magnetic layers at the edge of the film. Closure domains, which do not contribute significantly to the permeability, are undesired in patterned magnetic cores for transformers since they reduce the inductance. The inductance of narrow magnetic core transformers was found to drop with increasing frequency. Kerr images of these cores reveal partial closure domains at the edges, which explain the inductance behavior. Edge domain effects are explained based upon energy models of laminated Permalloy strips.

机译：通过层压交替的磁性/非磁性层产生的磁芯已显示出通过在薄膜边缘的磁性层之间垂直连接磁通量来消除闭合磁畴。在变压器的图案化磁芯中，闭合磁畴对磁导率的贡献不大，这是不希望的，因为它们会减小电感。发现窄磁芯变压器的电感随频率增加而下降。这些铁心的Kerr图像揭示了边缘的部分闭合域，这解释了电感行为。基于层状坡莫合金带的能量模型解释了边缘域效应。

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《IEEE Transactions on Magnetics》 |2013年第7期|4017-4020|共4页
作者
El-Ghazaly; A.; Mullenix; J.M.; White; R.M.; Wang; S.X.;
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作者单位

$^{1}$ Electrical Engineering, Stanford University,, Stanford,, CA, USA|c|;

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正文语种 eng
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Inductance; lamination; magnetic domain walls; transformer cores;

机译：电感;叠片;磁畴壁;变压器铁心;

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Kerr-Imaged Edge-Curling Wall Effects of Narrow Magnetic Cores

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