本實驗發現當我們在自旋閥結構中加入Fe的奈米級氧化層(Fe-NOL)後，針對上被固定層而言，此時同時存在著來自於反鐵磁所提供的單方向異向力以及奈米級氧化層所造成之正交耦合力，也由於此時兩力共存的影響使得在磁阻曲線上所呈現的複雜性。而爲了更進一步去了解在Fe-NOL系統中的機制，我們變改變不同膜層條件，以及在不同角度下量測，並且爲了去除自由層所造成的膜層複雜性，因此設計了單純AFM/FM/NOL/FM的結構直接觀察在Fe-NOL系統中上下被固定層的磁矩排列狀態。
我們並利用在不同角度下殘存磁化量的變化來觀察此系統的特性，也藉由此分析得到單方向以及九十度處單軸異向性共存的資訊。而同時可以偵測Mx，My訊號的vector coil量測法也是我們用來驗證本實驗的磁矩翻轉機制的工具。而爲了了解Fe-NOL材料性質以及其磁性質，XPS用來偵測Fe-NOL層中Fe價數的狀態；同步輻射中心XMCD針對Fe-NOL訊號觀察其磁性質，以及SPEM量測判讀其Fe-NOL中Fe價數在Fe-NOL空間分布的情形。

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第四章：
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