研究生: |
吳承恩 Wu, Cheng-En |
---|---|
論文名稱: |
鎳鐵合金二維磁振子晶格之鐵磁共振譜研究 The Ferromagnetic Resonance Spectra of 2-Dimensional Permalloy Magnonic Crystals |
指導教授: |
江佩勳
Jiang, Pei-hsun |
口試委員: |
江府峻
Jiang, Fu-Jiun 江宏仁 Jiang, Hong-Ren 江佩勳 Jiang, Pei-hsun |
口試日期: | 2023/07/14 |
學位類別: |
碩士 Master |
系所名稱: |
物理學系 Department of Physics |
論文出版年: | 2023 |
畢業學年度: | 111 |
語文別: | 中文 |
論文頁數: | 38 |
中文關鍵詞: | 鐵磁性材料 、鐵磁共振 、磁振子晶格 |
英文關鍵詞: | Ferromagnetic materials, ferromagnetic resonance, magnonic crystals |
研究方法: | 實驗設計法 、 準實驗設計法 、 現象學 、 次級資料分析 、 調查研究 、 主題分析 、 比較研究 、 觀察研究 、 文件分析法 、 現象分析 |
DOI URL: | http://doi.org/10.6345/NTNU202301717 |
論文種類: | 學術論文 |
相關次數: | 點閱:102 下載:2 |
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在這篇研究中,我們回顧了不同形狀、直徑、厚度的Py圓點陣列對鐵磁共振(ferromagnetic resonance, FMR)造成的影響。並且為了提高磁性薄膜的磁性能,對不同的墊材進行研究。
在這項實驗中,我們使用了電子束微影技術分別製作薄膜和直徑為5 μm,邊對邊間距為5 μm,厚度為30 nm的鎳鐵合金圓點陣列。並且透過電子束蒸鍍儀系統在室溫條件下成長樣品。我們選擇了共平面波導(Coplanar waveguide, CPW)的樣品結構,利用向量網路分析儀(vector network analyzer, VNA)輸入微波信號,在外加磁場的作用下,測量了鐵磁共振(ferromagnetic resonance, FMR)現象。
In this study, we examined the influence of Py (Permalloy) dot arrays with different shapes, diameters, and thicknesses on ferromagnetic resonance (FMR). Additionally, we investigated different underlayers in order to enhance the magnetic properties of thin films.
In this experiment, electron beam lithography was used to fabricate thin films and permalloy dot arrays with a diameter of 5 μm, a spacing of 5 μm, and a thickness of 30 nm. These arrays were grown using an electron beam evaporation system at room temperature. We selected a sample structure based on a coplanar waveguide (CPW) and employed a vector network analyzer (VNA) to introduce microwave signals. Under the influence of an externally applied magnetic field, we measured the phenomenon of ferromagnetic resonance (FMR).
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