Characterization of a nano-oxide layer in a pseudo spin valve by complex magneto-Impedance spectroscopy

W. C. Chien; C. K. Lo

doi:10.1109/TMAG.2006.879730

Characterization of a nano-oxide layer in a pseudo spin valve by complex magneto-Impedance spectroscopy

W. C. Chien, C. K. Lo

研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

7 引文斯高帕斯（Scopus）

摘要

The ac properties of a pseudo spin valve (PSV) consisting of NOL_top/Co/Cu/Co/Ni₈₀Fe₂₀/NOL_bottom with a top and bottom nano-oxide layer (NOL) were studied as functions of NOL and thickness, d, by magneto impedance spectroscopy. The NOLs were formed by natural oxidizing the top and bottom ferromagnetic or Ta layers in situ. The increase in the thickness of NOL resulting in the increment of effective capacitance caused the shift of roll-off frequency from low to high. The frequency dependence behavior of this NOL_top/PSV/NOL_bottom system can be modeled by equivalent circuit theory. PSV with a different NOL structure can be checked by such a nondestructive analysis method.

原文	英語
頁（從 - 到）	2624-2626
頁數	3
期刊	IEEE Transactions on Magnetics
卷	42
發行號	10
DOIs	https://doi.org/10.1109/TMAG.2006.879730
出版狀態	已發佈 - 2006 10月
對外發佈	是

ASJC Scopus subject areas

電子、光磁材料
電氣與電子工程

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10.1109/TMAG.2006.879730

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abstract = "The ac properties of a pseudo spin valve (PSV) consisting of NOLtop/Co/Cu/Co/Ni80Fe20/NOLbottom with a top and bottom nano-oxide layer (NOL) were studied as functions of NOL and thickness, d, by magneto impedance spectroscopy. The NOLs were formed by natural oxidizing the top and bottom ferromagnetic or Ta layers in situ. The increase in the thickness of NOL resulting in the increment of effective capacitance caused the shift of roll-off frequency from low to high. The frequency dependence behavior of this NOLtop/PSV/NOLbottom system can be modeled by equivalent circuit theory. PSV with a different NOL structure can be checked by such a nondestructive analysis method.",

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N2 - The ac properties of a pseudo spin valve (PSV) consisting of NOLtop/Co/Cu/Co/Ni80Fe20/NOLbottom with a top and bottom nano-oxide layer (NOL) were studied as functions of NOL and thickness, d, by magneto impedance spectroscopy. The NOLs were formed by natural oxidizing the top and bottom ferromagnetic or Ta layers in situ. The increase in the thickness of NOL resulting in the increment of effective capacitance caused the shift of roll-off frequency from low to high. The frequency dependence behavior of this NOLtop/PSV/NOLbottom system can be modeled by equivalent circuit theory. PSV with a different NOL structure can be checked by such a nondestructive analysis method.

AB - The ac properties of a pseudo spin valve (PSV) consisting of NOLtop/Co/Cu/Co/Ni80Fe20/NOLbottom with a top and bottom nano-oxide layer (NOL) were studied as functions of NOL and thickness, d, by magneto impedance spectroscopy. The NOLs were formed by natural oxidizing the top and bottom ferromagnetic or Ta layers in situ. The increase in the thickness of NOL resulting in the increment of effective capacitance caused the shift of roll-off frequency from low to high. The frequency dependence behavior of this NOLtop/PSV/NOLbottom system can be modeled by equivalent circuit theory. PSV with a different NOL structure can be checked by such a nondestructive analysis method.

KW - Magneto-capacitance

KW - magneto-impedance

KW - nano-oxide layer

KW - pseudo spin valve

KW - roll-off frequency

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Characterization of a nano-oxide layer in a pseudo spin valve by complex magneto-Impedance spectroscopy

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