本實驗主要研究自組裝FePt奈米顆粒摻雜Cu後對其序化溫度的影響，由於FePt奈米顆粒其磁性在500 以上退火處理後才會顯現，因此期望添加Cu之後，能夠降低其序化溫度。
　　含有Cu的FePt奈米顆粒可在含有界面活性劑的高溫苯醚溶液中，藉由還原乙醯丙酮鉑(Platinum acetylacetonate)以及乙醯丙酮銅(Copper acetylacetonate)、熱分解五羰鐵(iron carbonyl)得到。目前的實驗結果發現，添加Cu之後，FePt奈米顆粒的序化溫度降低約50-100 ，在500 相同的退火處理溫度及條件下，含有Cu的FePt奈米顆粒已呈現鐵磁性的型態，而未摻Cu的奈米顆粒仍是超順磁的狀態，而在550 退火溫度下，添加9% Cu的FePt奈米顆粒具有最大的矯頑場。經由繞射圖譜以及吸收光譜結果判斷，Cu與FePt奈米顆粒形成三元合金相，Cu可能佔據在Fe的位置。而FeCuPt三元合金較易轉變為序化的結構，因此添加Cu導致序化溫度的下降。
序化溫度的下降，可減少FePt奈米顆粒在熱處理過程中造成的黏結以及顆粒成長，造成的自組裝結構的損失，降低FePt奈米顆粒日後在工業應用上的障礙。

Fe Cu Pt nanoparticles were prepared by the simultaneous polyol reduction of platinum acetylacetonate and copper acetylacetonate and the thermal decomposition of iron carbonyl. The addition of copper promoted the disorder FCC structure to order structure, thereby reducing the temperature required for this transition about 50-100 . Under 500 annealing temperature and the same annealing condition, the coercivity of the Fe Cu Pt nanoparticles containing 11% copper was 243 Oe while the pure FePt nanoparticles were superparamagnetic. From the x-ray powder diffraction and x-ray absorption spectroscopy results, it was found that FePtCu ternary alloy was formed and the Fe site was replaced by Cu.

[1] S. Sun, C.B. Murry, D. Weller, L. Folks, A. Moser, Science 287 (2000) 1989.
[2] B.R. Acharya, E.N. Abarra, A. Inomata, I. Okamoto, Joint European Magnetism Symposium(Grenoble, France, 2001) B046.
[3] K. Inomata, T. Sawa, S. Hashimoto, J. Appl. Phys. 64 (1988) 2537.
[4] C.B. Murry, S. Sun, W.Gaschler, H.Doyle, T.A. Betley, C.R Kagan, IBM J. Res. Develop. 45 (2001) 47.
[5] S. Anders, S. Sun, C.B. Murry, C.T. Rettner, M.E Best, T. Thomason, M. Albrecht, J.-U. Thiele, E.E. Fullerton, B.D. Terris, Microelec. Eng. 61-62 (2002) 569.
[6] M. L. Plumer, J. V. Ek and D. Weller, The Physics of Ultra-High-Density Magnetic Recording(Springer, New York 2001) 249-276.
[7] http://www.research.ibm.com/
[8] 游信和，陳文照，曾春風，材料科學導論，高立出版社.
[9] 廖彥發，清華大學碩士論文，2003.
[10] 吳泰伯，許樹恩，X光繞射與材料結構分析，中國材料科學學會.
[11] T.J. Klemmer, N. Shukla, C. Lin, X.W. Wu, E.B. Svedberg, O. Mryasov, R.W. Chantrell, and D. Weller, Appl. Phys. Lett. 81, 12 (2002) 2220.
[12] T. Maeda, T. Kai, A. Kikitsu, T. Nagase, J. Akiyama, Appl. Phys. Lett. 80 (2002) 2147.
[13] C.L. Platt, K.W. Wierman, E.B. Svedberg, R. van de　Veerdonk, Ｊ.K. Howard, J. Appl. Phys. 92 (2002) 6104.
[14] Y.K. Takahashi, M. Ohnuma, K. Hono, J. Magn. Magn. Mater. 246 (2002) 259-265.
[15] O. Kitakami, Y. Shimada, K. Daimon, K. Fukamichi, Appl. Phys. Lett. 78 (2001) 1104.
[16] C.Chen, O. Kitakami, S. Okamoto, Y. Shimada, ,Appl. Phys. Lett. 76 (2000) 3218.
[17] C.M. Kuo, P.C. Kuo, W.C. Hsu, C.T. Li, A.C. Sun, J. Magn. Magn. Mater. 209 (2000) 100.
[18] S.R Lee, S. Yang, Y.K. Kim, J.G. Na, Appl. Phys. Lett. 78 (2001) 4001.
[19] M. Chen, D.E. Nikles, Nano. Lett. 2 (2002) 211.
[20] S. Kang, J.W. Harrell, D.E. Nikles, Nano. Lett. 2 (2002) 1033.
[21] S. Kang, Z. Jia, D.E. Nikles, J.W. Harrell, IEEE Trans. Magn. 39 (2003) 2753.
[22] D. C. Koningsberger, R. Prins, X-ray absorption: principles, applications, techniques of EXAFS, SEXAFS, and XANES, (1988) 53-83.
[23] B. K. Teo, EXAFS: Basic Principles and Data Analysis, (1986) 21-101.
[24] 王其武、劉文漢，X射線吸收精細結構及其應用，科學出版社(1994)。
[25] 黃彥衡，國立清華大學碩士論文，2004.
[26] 金重勳等，磁性技術手冊，台灣磁性技術學會。
[27] http://www.research.ibm.com/resources/news.shtml
[28] S. Sun, S. Anders, T. Thomson, J. E. E. Baglin, M. F. Toney, H. F. Hamann, C. B. Murray and B. D. Terris, J. Phys. Chem. 107 (2003) 5419.
[29] T. Z. Huang, Y. H. Huang, T. H. Tu and C. H. Lee, J. Magn. Magn. Mater. (accepted, 2004).(附錄一)
[30] K. Chang, H. H. Hsieh, W. F. Pong, M.–H Tsai, F. Z. Chien, P. K. Tseng, L. C. Chen, T. Y. Wang, K. H. Chen, D. M. Bhusari, J. R. Young, S. T. Lin, Phys. Rev. Lett. 82 (1999) 5377.