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研究生: 林建良
Lin, Jian-Liang
論文名稱: 脈衝雷射沉積法製備釔銩鐵石榴石薄膜的探討:結構、光學與磁性研究
Structural,Optical and Magnetic properties of Tm-doped YIG thin films grown by pulsed-laser deposition
指導教授: 駱芳鈺
Lo, Fang-Yuh
學位類別: 碩士
Master
系所名稱: 物理學系
Department of Physics
論文出版年: 2018
畢業學年度: 106
語文別: 中文
論文頁數: 47
中文關鍵詞: 釔鐵石榴石脈衝雷射鍍膜
英文關鍵詞: Yttrium iron garnet, Thulium, Pulsed-laser deposition (PLD)
DOI URL: http://doi.org/10.6345/THE.NTNU.DP.019.2018.B04
論文種類: 學術論文
相關次數: 點閱:153下載:14
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本論文以脈衝雷射蒸鍍法在c方向單晶藍寶石基板上製備100nm厚的TmxY3-xFe5O12薄膜,並探討薄膜鍍膜速率、薄膜的結構特性、光學性質及磁性的關係,其中單位面積雷射能量為3.5 J/cm2,鍍膜氧壓分別為3×10-1 mbar,Tm取代比例為x=0~3,基板溫度為750℃。
TmxY3-xFe5O12薄膜鍍膜速率不隨著取代比例增加而加快,鍍膜速率並無特定趨勢。X光繞射及拉曼散射光譜顯示隨著取代比例增加,薄膜由多晶轉為非晶結構,代表基板與薄膜的晶格失配度過大而無法形成單晶結構,薄膜在x=1.5時結晶品質最好。X光電子能譜分析,取得薄膜的銩與釔的實驗比例與理論值不符。利用原子力顯微鏡來看表面形貌與粗糙度,表面有許多柱狀晶體與粗糙度大約為20nm粗糙表面。超導量子干涉磁量儀測定與柯爾磁光顯微鏡結果顯示所有薄膜都沒有表現出磁性。

In this paper, a 100nm thick TmxY3-xFe5O12 film was prepared on a c-oriented single crystal sapphire substrate by pulsed-laser deposition. The relationship between the film coating rate, the structural properties, optical properties and magnetic properties of the film was investigated. The laser energy fluence is 3.5 J/cm2, the coating oxygen pressure was 3×10-1 mbar, the Tm substitution ratio was x=0~3, and the substrate temperature was 750 °C.
The coating rate of TmxY3-xFe5O12 film does not increase with the increase of the substitution ratio, and there is no specific trend of coating rate. X-ray diffraction and Raman scattering spectroscopy show that the structure of thin films changes from polycrystalline to amorphous as Tm concerntration increases,and the film has the best crystal quality at x=1.5. According to the x-ray photoelectron spectroscopy, the experimental ratio of thulium to yttrium of the film is not in agreement with the theoretical value. The surface topography and roughness were observed by atomic force microscopy with a number of columnar crystals and a rough surface of approximately 20 nm roughness. The results of SQIUID and Kerr Magneto-Optical Microscopy showed that all films showed no magnetic properties.

致謝 i 摘要 ii Abstract iii CH1 序論 1 CH2 背景知識 3 2.1 釔鐵石榴石(Y3Fe5O12)、銩(Tm)與藍寶石基板(Sapphire)的性質 3 2.2 脈衝雷射蒸鍍法(pulsed-laser deposition,PLD) 6 2.3 退火 8 2.4 X光繞射(X-ray diffraction,XRD)與X光光電子能譜(X-ray photoelectron spectroscopy,XPS) 8 2.5 拉曼散射光譜(Raman-scattering spectroscopy) 13 2.6 原子力顯微術(atomic force microscopy,AFM) 15 2.7 表面輪廓儀(Profilo meter) 16 2.8 超導量子干涉磁量儀(SQUID magnetometer) 17 2.9 材料的磁性簡介 18 2.10 磁光科爾效應 19 CH3 實驗過程 21 3.1 鍍膜條件 21 3.2 靶材製備 21 3.3 藍寶石基板清洗 22 3.4 鍍膜流程 22 3.5 退火流程 23 CH4 結果與討論 24 4.1 鍍膜速率分析 24 4.2 XRD結果分析 25 4.3 XPS結果分析 28 4.4 Raman結果分析 30 4.5 表面形貌與粗糙度 32 4.6 SQUID結果分析 34 4.7 磁光柯爾顯微鏡結果分析 35 CH5 結論與展望 45 參考資料 46

1. 余威廷,2005,添加高分子螯合劑對生成釔鐵氧化物結構之影響研究(碩士論文)。南台科技大學。
2. Murata Mfg. Co., Ltd., 2-26-10 Tenjin, Nagaokakyo, Kyoto 617-8555, Japan
3. Deltronic Crystal Isowave - Yttrium Iron Garnet - 2013-02-14
4. Makiyyu AbdullahiMusa,Raba'ah SyahidahAzis,Nurul HudaOsman,JumiahHassan,TasiuZangina,2017,Structural and magnetic properties of yttrium iron garnet (YIG) and yttrium aluminum iron garnet (YAlG) nanoferrite via sol-gel synthesis,Result in Physics Volume 7 Pages1135-1142
5. 蔡昌彥,2017,石榴石鐵氣體之磁性與光學特性之分析(碩士論文),國立屏東大學。
6. Wendymeng,2011,LED用藍寶石基板(襯底)簡介,from https://www.ledinside.com.tw/knowledge/20110929-17201.html
7. 維基百科,關鍵字銩。
8. 維基百科,關鍵字氧化銩。
9. Ü . Ö zgür, Ya. I. Alivov, C. Liu, A. Teke, M. A. Reshchikov, S. Doğan, V. Avrutin, S.-J. Cho, and H. Morkoç ,2005,J. Appl. Phys. 98, 041301。
10. 丁一介,2014,脈衝雷射蒸鍍法製備氧化鏑鋅薄膜的探討:結構、光學與磁性研究(碩士論文),國立台灣師範大學。
11. 維基百科,關鍵字退火。
12. David J. Griffiths ,2008,Introduction to Electrodynamics(third edition)。
13. Raymond A. Serway, Clement J. Moses and Curt A. Moyer ,2005, Modern Physics(third edition)。
14. B. D. Cullity and S. R. Stock,2001, Elements of X-Ray Diffraction (third edition)。
15. Paul van der Heide ,2011, X-ray Photoelectron Spectroscopy: An introduction to Principles and Practices.
16. 工程材料 第三章 結晶固體之結構 (The Structures of Crystalline Solid),from http://web.ncyu.edu.tw/~lanjc/lesson/C1/class/lesson/3.pdf
17. P. Debye and P. Scherrer, Physik. Z,1917, 18, 291。
18. 張樹霖編著,2008,拉曼散射學與低維奈米半導體。
19. M. Ahmad, E. Ahmed, Z. L. Hong, J. F. Xu, N. R. Khalid, A. Elhissi, and W. Ahmed,2013,Appl. Surf. Sci. 274, 273。
20. 謝宜暾,2006,氧化鋅摻雜銅及鎳之物性研究(碩士論文),國立臺南大學。
21. 周楷傑,2015,脈衝雷射蒸鍍法製備氧化鉺薄膜的探討 :結構、光學與磁性研究(碩士論文),國立台灣師範大學。
22. Structural evolution of Y3Fe5O12induced by shock compression Hiroaki Kishimura*and Hitoshi Matsumoto Department of Materials Science and Engineering, National Defense Academy, Yokosuka, Kanagawa 239-8686, Japan
23. YU Jinqiu(余金秋)*, CUI Lei (崔磊), HE Huaqiang (何華强), YAN Shihong (颜世宏), HU Yunsheng (胡運生), WU Hao (吴浩),Raman spectra of RE2O3 (RE=Eu, Gd, Dy, Ho, Er, Tm, Yb, Lu, Sc and Y): laser-excited luminescence and trace impurity analysis ,(National Engineering Research Center for Rare Earth Materials, General Research Institute for Nonferrous Metals, and Grirem Advanced Materials Co., Ltd., Beijing 100088, China)
24. 黃英碩,2005,掃描探針顯微術的原理及應用,科儀新知,144期,7-17頁。
25. 葉育廷,2016,脈衝雷射蒸鍍法製備氧化鈥鋅薄膜的探討:結構、光學與磁性研究(碩士論文),臺灣師範大學
26. 洪連輝和陳建淼,2009,柯爾磁光效應,科學online,from http://highscope.ch.ntu.edu.tw/wordpress/?p=1595。

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