本論文提出一個新的方法去研究磁性薄膜磁化翻轉現象:利用懸臂樑結構在外加磁場下的彎曲變化去觀察懸臂樑上磁性薄膜磁化翻轉現象。本論文成功利用鐵薄膜在外加磁場下使得懸臂樑結構彎曲，換句話說，懸臂樑結構在外加磁場下彎曲的行為可以用來分析鐵薄膜磁特性，另外，如果要利用鐵薄膜在外加磁場下產生的磁扭力矩去使得懸臂樑結構彎曲的話，需要兩個條件：磁形狀異向性的設計和靈敏的懸臂樑結構製作。
本論文主要探討的主題有:一、外加磁場方向和單層鐵薄膜磁化翻轉間的關聯，二、外加磁場方向和多層鐵薄膜磁化翻轉間的關聯，三、鐵薄膜體積和單層鐵薄膜磁化翻轉間的關聯，四、懸臂樑寬度和單層鐵薄膜磁化翻轉間的關聯，五、結構和多層鐵薄膜磁化翻轉間的關聯，六、夾子結構和單層鐵薄膜磁化翻轉間的關聯。
本論文也提出一個模擬的方法去驗證實驗結果：利用Object Oriented MicroMagnetic Framework (OOMMF)軟體去分析鐵薄膜在外加磁場下產生的磁扭力矩，然後在把OOMMF軟體得到的磁扭力矩利用ANSYS軟體去分析懸臂樑結構的位移量，在結合兩套軟體之後，我們可以得到懸臂樑結構在外加磁場下產生的位移變化量。

A new method that the magnetization reversal of magnetic thin film was observed by the deflection of magnetic actuator under external magnetic filed to study the magnetization reversal of magnetic thin film is proposed. The magnetic actuator was bent by magnetic thin film, when it was placed in an external magnetic filed. On the other hand, the magnetic property of magnetic thin film can be analyzed by the deflection of magnetic actuator. The magnetic actuator is bent by magnetic torque produced by ferromagnetic thin film under an external magnetic field owing to the fabrication of a highly sensitive microcantilever and the design of a high magnetic shape anisotropy.
These were discussed that the directions of the magnetic field can affect the magnetization reversal of magnetic thin film, that the directions of the magnetic field can affect the magnetization reversal of magnetic thin films, that the volume of magnetic thin film can affect the magnetization reversal of magnetic thin film, that the width of microcantilever can affect the magnetization reversal of magnetic thin film, that the shape of magnetic actuator can affect the magnetization reversal of magnetic thin films, and that the shape of tweezers can affect the magnetization reversal of magnetic thin films.
A method of simulation that the magnetic torque under external magnetic field was analyzed by OOMMF, and then the deflection of magnetic actuator under the magnetic torque was analyzed by ANSYS was proposed to prove the experimental results.

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