標題: Characterization of a nano-oxide layer in a pseudo spin valve by complex magneto-impedance spectroscopy
作者: Chien, W. C.
Peng, T. Y.
Hsieh, L. C.
Lo, C. K.
Yao, Y. D.
材料科學與工程學系
Department of Materials Science and Engineering
關鍵字: magneto-capacitance;magneto-impedance;nano-oxide layer;pseudo spin valve;roll-off frequency
公開日期: 1-Oct-2006
摘要: The ac properties of a pseudo spin valve (PSV) consisting of NOLtop/Co/Cu/Co/Ni80Fe20/NOLbottom with a top and bottom nanooxide 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 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.
URI: http://dx.doi.org/10.1109/TMAG.2006.879730
http://hdl.handle.net/11536/11709
ISSN: 0018-9464
DOI: 10.1109/TMAG.2006.879730
期刊: IEEE TRANSACTIONS ON MAGNETICS
Volume: 42
Issue: 10
起始頁: 2624
結束頁: 2626
Appears in Collections:Conferences Paper


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