研究生: |
戴永清 |
---|---|
論文名稱: |
氧化鎳/鎳鐵磊晶雙層膜交換偏壓研究 Exchange bias in epitaxial NiO/Ni80Fe20 bilayers |
指導教授: | 歐陽浩 |
口試委員: |
孫安正
邱顯浩 |
學位類別: |
碩士 Master |
系所名稱: |
工學院 - 材料科學工程學系 Materials Science and Engineering |
論文出版年: | 2011 |
畢業學年度: | 100 |
語文別: | 中文 |
論文頁數: | 409 |
中文關鍵詞: | 氧化鎳/鎳鐵雙層膜 、交換偏壓 、第一原理理論模擬 |
相關次數: | 點閱:1 下載:0 |
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本實驗主要為氧化鎳/鎳鐵磊晶雙層膜之結構分析與第一原理模擬,利用氧化鎂(110)單晶基板上磊晶成長氧化鎳與鎳鐵結構,藉由高解析電子顯微鏡圖來分析界面接合狀況,也用來做詳細的粗糙度計算,藉由原子探針顯微鏡可以得知,當轟擊電壓越高,粗糙度對下降,會往正的交換偏壓偏移。
藉由高解析電子顯微鏡分析,可以清楚分析出界面接合方式,晶面軸為[001],接面方向為[110],建出氧化鎳與鎳鐵的接合模型,利用程式模擬,確保膜型的準確性,再利用第一原理計算,來計算交換偏壓。雖然接合模型中的氧化鎳界面為補償面(淨磁化量為零),但經過模擬後還是會發現有交換偏壓的發生,主要原因有兩者,一、鎳鐵相中,鎳原子與鐵原子對於氧化鎳的影響力不同,所以會有淨磁交互作用力,而且當界面的鐵與鎳為鐵磁偶合時,會有正的交換偏壓生成;二、氧原子的鍵結,當鎳鐵結構與氧化鎳中的也原子距離太近時,會有鍵結生成,而這時候會有超交互作用力產生,使的磁化排列會變成反鐵磁,導致負的交換偏壓生成,當界面有這兩個現象時(加入粗糙度的因素),氧原子的以響力遠大於鐵,所以都為負的交換偏壓,最後模擬的結果為界面平整才有機會出現正的交換偏壓,雖然實際上會有粗糙度,但只要整體性偏平整的話就可以克服粗糙度造成的負交換偏壓值。
[1] Scott Mueller “Upgrading and Repairing PCs”(2003)
[2] W. P. Meiklejohn, C. P. Bean, Phys. Rev., 102, 1413 (1956).
[3] Nicola A. Spaldin, "Magnetic Materials: Fundamentals and Applications”(2003)
[4] R. R. Katti, proceedings of the IEEE,91,687(2003)
[5] S. Yuasa and D. D. Djayaprawira, J. Phys. D: Appl. Phys. 40 337(2007)
[6] J. X. Shen and M. T. Kief , JOURNAL OF APPLIED PHYSICS 79, 5008 (1996)
[7] G. H. Yu and L. R. Zeng , JOURNAL OF APPLIED PHYSICS 90, 4039 (2001)
[8] De-Hau Han, Jian-Gang Zhu, and Jack H. Judy, JOURNAL OF APPLIED PHYSICS 81, 304(1997)
[9] De-Hau Han, Jian-Gang Zhu, and Jack H. Judy, JOURNAL OF APPLIED PHYSICS 81, 4996(1997)
[10] G. H. Yu, C. L. Chai, F. W. Zhu, J. M. Xiao, and W. Y. Lai, APPLIED PHYSICS LETTERS 78,1706(2001)
[11] Chih-Huang Lai, Hideo Matsuyama, Robert L. White, Thomas C. Anthony, and Gary G. Bush, JOURNAL OF APPLIED PHYSICS 79,6389(1996)
[12] Z. Y. Liu and S. Adenwalla, APPLIED PHYSICS LETTERS 82,2016(2003)
[13] D. Engel, A. Kronenberger, M. Jung, H. Schmoranzer, A. Ehresmann, A. Paetzild, K. Röll, JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 263,275(2003)
[14] R. P. Michel, A. Chaiken, C. T. Wang, and L. E. Johnson, PHYSICAL REVIEW B 58,8566(1998)
[15] W. H. Meiklejohn, C. P. Bean, Phys. Rev. 102 (1956) 1413
[16] R. K. Zheng, Hui. Liu, Y. Wang, and X. X. Zhang, J. Appl. Phys. 96 (2004) 5370.
[17] T. J. Moran, J. M. Gallego, I. K. Schuller, J. Appl. Phys. 78 (1995) 1887.
[18] A. N. Dobrynin, D. N. levlev, K. Temst P. Lievens, J. Margueritat, J. Gonzalo, C. N. Afonso, S. Q. Zhou, A. Vantomme, E. Piscopiello, and G. Van Tendeloo, Appl. Phys. Lett. 87, (2005) 012501 .
[19] J. Nogue’s, C. Leighton and Ivan K. Schuller, Phys. Rev. B 61 (2000-II) 1315.
[20] X. Ke, M. S. Rzchowski, L. J. Belenky, and C. B. Eom, Appl. Phys. Lett. 84, (2004) 5458
[21] J. Nogue’s and Ivan K. Schuller, J. Magn. Magn. Mater. 192 (1999) 203.
[22] W.H. Meiklejohn, J. Appl. Phys. 33,1328(1962)
[23] A. E. Berkowitz, and Kentaro Takano, J. Magn. Magn. Mater. 200 (1999) 552.
[24] D. Mauri, H. C. Siegmann, P. S. Bagus, E. Kay, J. Appl. Phys. 62 (1987) 3047
[25] A. P. Malozemoff, Phys. Rev. B 35 (1987) 3679.
[26] A. P. Malozemoff, J. Appl. Phys. 63 (1988) 3874.
[27] A. P. Malozemoff, Phys. Rev. B 37 (1988) 7673.
[28] N. C. Koon, Phys. Rev. Lett. 78 (1997) 4865.
[29] T. C. Schulthess, W. H. Butler, Phys. Rev. Lett., 81 (1998) 4516.
[30] Kentaro Takano, R. H. Kodama, A. E. Berkowitz, W. Cao,, J. Appl. Phys. 83
[31] 66(1998) 6888
[32] Florin Radu , Hartmut Zabel , cond-mat.mtrl-sci , 0705.2055v1.
[33] U. Nowak , K. D. Usadel , Phys. Rev. B 66 (2002) 014430.
[34] U. Nowak, A. Misra, K. D. Usadel, J. Appl. Phys. 389 (2001) 7268.
[35] P. Miltényi ,M. Gierlings , J. Keller, B. Beschoten, Phys. Rev. Lett. 84, (2000) 4224.
[36] Joo-Von Kim, R. L. Stamps, Phys. Rev. B. 71, 094495(2005)
[37] F. Radu, A. Westphalen, K. Theis-Brohl, H. Zabel., J. Phys.:Condens. Matter 18, L29(2006)
[38] J. Nogues, D. Lederman, T. J. Moran, Ivan K. Schuller, Phys. Rev. Lett. 76, 4624 (1996)
[39] N. N. Phuoc, N. P. Thuy, N. A. Tuan, L. T. Hung, N. T. Thanh, N. T. Nam, J. Magn. Magn. Mater. 298, 43 (2006)
[40] 林智仁,羅聖全,工業材料雜誌,201期,P.90-98,民92年9月
[41] 中興大學材料工程學系碩士論文,鎳鐵/鎳鐵氧化物雙層薄膜顯微結構之分析及其交換偏壓性質,劉家政,民95年。
[42] P. Hohenberg and W. Kohn, Phys. Rev. 136 (1964) B864.
[43] W. Kohn and L. J. Sham, Phys. Rev. 140 (1965) A1133.
[44] J. P. Perdew, K. Burke, and M. Ernzerhof, Phys. Rev. Lett. 77 (1996) 3865.
[45] The Art of Molecular Dynamics Simulation, D. C. Rapaport.
[46] X. Zhao, D. Ceresoli, and D. Vanderbilt, Phys. Rev. B 71 (2005) 085107.
[47] D. R. Hamann, M. Schluter, and C. Chiang, Phy. Rev. Lett. 43 (1979) 1494.
[48] M. C. Payne, M. P. Teter, D. C. Allan, T. A. Arias, and J. D. Joannopoulos, Reviews of Modern Physics, Vol. 64, No. 4, 1045 (1992).
[49] F. S. Ham and B. Segall, Phys. Rev. 124 (1961) 1786.
[50] M. Methfessel, and M. Van Schilfgaarde, Phys. Rev. B, 48 (1993) 4937.
[51] G. A. Sai-Halasz, L. Esaki, and W. A. Harrison, Phys. Rev. B 18 (1978) 2812.
[52] Charles Kittel, Introduction to Solid State Physics, John Wiley and Sons (2005).
[53] The guide of VASP, can be retrieved from:http://cms.mpi.univie.ac.at/VASP/ , written by Georg Kresse and Jürgen Furthmüller.
[54] G. Kresse and J. Furthmuller, Phys. Rev. B 54 (1996) 11169.
[55] D. Vanderbilt, Phys. Rev. B, 41 (1990) 7892.
[56] C. G. Bmyden, Math. Comput 19 (155) 577.
[57] P. Pulay, Chem. Phys. Lett. 73 (1980) 393
[58] D. D. Johnson, Phys. Rev. B38, 12 (1988) 87.
[59] In general the Kohn-Sham energy functional for an ultrasoft (US) Vanderbilt pseudopotential (PP) can be written as [25-271].
[60] N. W. Ashcroft and N. D. Mermin, Solid state physics, Saunders College
[61] 67Publishing (1976).
[62] M. P. Marder, Condensed matter physics, John Wiley and Sons (2000).
[63] 江進福, 物理雙月刊, 廿三卷五期, P549-553 (2001)
[64] L. H. Thomas, "The calculation of atomic fields". Mathematical Proceedings of the Cambridge Philosophical Society 23 (1927) 542.
[65] E. Fermi, "Un Metodo Statistico per la Determinazione di alcune Prioprietà dell'Atomo". Rend. Accad. Naz. Lincei 6 (1927) 602.
[66] E. Wigner, Transactions of the Faraday Society, 34 (1938) 0678.
[67] D. M. Ceperley and B. J. Alder, Phys. Rev. Lett. 45 (1980) 566.
[68] S. H. Vosko, J. P. Perdew, and A. H. Macdonald, Phy. Rev. Lett. 35 (1975) 1725.
A. I. Liechtenstein, V. I. Anisimov, and J. Zaanen, Phys. Rev. B 52 (1995) R5467.
[69] G. Onida, L. Reining, and A. Rubio, Review of Modern Physics, vol. 74 (2002) 601
[70] B. D. Cullity, Introduction to Magnetic Materials, Addison-Wesley Pub. Co. (1972).
[71] V. A. Krutov and L. N. Savushkin, J. Phys. A: Math. Nucl. Gen. 6 (1973) 93
[72] 中興大學材料工程學系碩士論文,黃宣榕,離子束轟極對鎳鐵/氧化鎳奈米雙層薄膜之結構及磁性質影響,第101頁,第107頁,民國99年。
[73] W. L. Roth, Phys. Rev. 110,6 ,1958
[74] P. Y. Yang, C. Song, F. Zeng, and F. Pan , APPLIED PHYSICS LETTERS 92, 243113 _2008
[75] P. Luches, S. Benedetti, A. di Bona, and S. Valeri, Phys. Rev. B 81, 054431 (2010)