| 研究生: |
王鳴輝 Wang, Ming-Hui |
|---|---|
| 論文名稱: |
Ni80Fe20 / Rh(111)/ Ni80Fe20 三層膜之磊晶成長
及磁圓偏振二向性研究 Epitaxial Growth of Ni80Fe20 / Rh(111)/ Ni80Fe20 sandwiches and Studies of the magnetic circular dichroism (MCD) |
| 指導教授: |
黃榮俊
Huang, Rong-Jun |
| 學位類別: |
碩士 Master |
| 系所名稱: |
理學院 - 物理學系 Department of Physics |
| 論文出版年: | 2004 |
| 畢業學年度: | 92 |
| 語文別: | 中文 |
| 論文頁數: | 96 |
| 中文關鍵詞: | 磁圓偏振二向性 、三層膜 、磁性 、反鐵磁耦合 、銠 |
| 外文關鍵詞: | MCD, Rh, Ni80Fe20 |
| 相關次數: | 點閱:139 下載:2 |
| 分享至: |
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本實驗利用分子束磊晶 (MBE) 成長 Ni80Fe20 / Rh / Ni80Fe20 三層膜,研究其交換耦合行為。由 RHEED patterns 顯示出 NiFe層 及 Rh層皆為良好的 fcc(111) 結構,且隨著Rh層厚度的變化,會有交換耦合震盪的現象發生,其反鐵磁耦合的極值2.02erg/cm2發生在Rh厚度為6 Å時。實驗中並利用磁圓偏振二向性 (MCD),研究鐵磁材料NiFe合金其各自Ni和Fe的 spin moment及orbit moment的磁貢獻。
Ni80Fe20 / Rh / Ni80Fe20 sandwiches grown by the molecular beam epitaxy (MBE) is presented. In these sandwiches,both NiFe and Rh layers have a fcc(111) substrate,as indicated by the RHEED patterns observed. Oscillatory indirect exchange coupling as a function of the Rh thickness is observed. The antiferromagnetic exchange coupling reached for thin Rh spacer layers:2.02erg/cm2 for 6 Å Rh.To understand the origin of spin moments and orbit moments ,we present the measurements of Ni and Fe L3,2-edge soft x-ray magnetic circular dichroism(MCD).
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碩士論文(2003)
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