Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/17171
標題: 利用共平面波導探測鎳鐵薄膜的鐵磁共振特性
Using coplanar waveguide to detect ferromagnetic resonance properties of Permalloy thin film
作者: Chen, Mei-Hou
陳梅侯
關鍵字: ferromagnetic resonance
鐵磁共振
PLL
NiFe thin film
鎖相迴路
鎳鐵薄膜
出版社: 物理學系所
引用: 參考資料 [1] 鄭振東,“實用磁性材料學“,全華科技出版社(1999). [2] R. C. O’Handley, “Modern Magnetic Materials”, Wiley Interscience Publication company (2000). [3] A. Belkin, V. Novosad, M. Iavarone, J. Fedor, J. E. Pearson, A. Petrean-Troncalli, and G. Karapetrov, Applied Physic Letters 93, 072510 (2008). [4] S. Hankemeier, R. Fromter, N. Mikuszeit, D. Stickler, H. Stillrich, S. Putter, E. Y. Vedmedenko, and H. P. Oepen, Physical Review Letters 103, 147204 (2009). [5] N. X. Sun, S. X. Wang, T. J. Silva, Member, and A. B. Kos, IEEE Transactions on Magnetics 38, 1 (2002). [6] C. Kittel “Introduction to Solid State Physics”, Eighth edition, John Wiley & Sons, Inc. (2005). [7] S. Chikazumi, ‘Physics of Freeomagnetism’, Oxford, New York, (1997). [8] J. P. Nibarger, R. Lopusnik, Z. Celinski, and T. J. Silva, Applied Physic Letters 83, 93 (2003). [9] R. N. Simons, "Coplanar Waveguide Circuits, Components, and Systems" John Wiley & Sons, (2001). [10] C. P. Wen, IEEE Transactions on Microwave Theory and Techniques 17, 1087 (1969). [11] C. Veyres, V. Fouad Hanna, International Journal of Electronics 48, 47 (1980). [12] H. Zhang, A. Hoffmann, R. Divan, and P. Wang, Applied Physics Letters 95, 232503 (2009). [13] Y. Nozaki, K. Tateishi, S. Taharazako, S. Yoshimura, and K. Matsuyama, Applied Physics Letters 92, 161903 (2008). [14] Y. S. Gui, N. Mecking, and C. M. Hu, Physical Review Letters 98, 217603 (2007). [15] J. C. Sankey, P. M. Braganca, A. G. F. Garcia, I. N. Krivorotov, R. A. Buhrman, and D. C. Ralph, Physical Review Letters 96, 227601 (2006). [16] W. H. Hsieh, Y. W. Suen, S. Y. Chang, L. C. Li, C. H.Kuan, B. C. Lee, and C. P. Lee, Applied Physics Letters 85, 4196 (2004). [17] 宋育泰,“高感度低飄移微波向量偵測器應用在低溫低維度電子系統”, 碩士論文, 國立中興大學物理系 (2006) [18] Y. W. Suen, W. H. Hsieh, C. L. Chen, L. C. Li, C. H. Kuan, Review of Scientific Instruments 76, 084704 (2005) [19] J. B. Hagen, "Radio-Frequency Electronics", Cambridge University Press (1996). [20] T. J. Sliva, C. C. Lee, T. M. Crawford, and C. T. Rogers, Journal of Applied Physics 85, 11 (1999). [21] M. Steiner, C. Pels, and G. Meier, Journal of Applied Physics 95, 11 (2004). [22] Y. S. Gui, S. Holland, N. Mecking, and C. M. Hu, Physical Review Letters 95, 056807 (2005). [23] C. Bell, S. Milikisyants, M. Huber, and J. Aarts, Physical Review Letters 100, 047002 (2008). [24] W. Platow, A. N. Anisimov, G. L. Dunifer, M. Farle, and K. Baberschke, Physical Review B 58, 5611 (1998).
摘要: In this study, we use coplanar waveguide (CPW) to detect ferromagnetic resonance (FMR) properties of Permalloy (Ni80Fe20) thin film. We fabricated coplanar waveguide with a 100 nm thick permalloy thin film on a 4 mm × 3 mm GaAs substrate. The variations of the phase and the amplitude of microwave signals through the sample were measured by a home-made ultra-high sensitivity microwave vector meter. We found that the types and resonant frequencies are strongly affected by the coplanar patterns. The amplitude of ferromagnetic resonance at 10K is larger than that at 300K, and resonance points are obviously shifted to high magnetic field when the frequency is above 10 GHz. Moreover, we also found that the ferromagnetic resonances decrease by increasing the angle between the magnetic field and the normal of the sample surface. We fit the experiment data with is θ the theoretical model, and obtain the gyromagnetic ratio and damping factor decrease which as θ increases or temperature decreases.
本篇論文是利用共平面波導(CPW)來研究鎳鐵薄膜的鐵磁共振特性。我們在4mm × 3mm的不導電GaAs基板上製作厚100 nm的鎳鐵金屬共平面波導,並利用實驗室自製的超高感度微波向量偵測器觀察微波訊號分析微波訊號經過樣品後相位及振幅的變化。我們發現不同的共平面波導圖形會有不同的共振頻寬及形式;溫度在10K時鐵磁共振比300K有較大的共振幅度,並且共振點在頻率大於10 GHz後,明顯往高磁場偏移。然而我們同樣注意到,共振頻寬偏移現象卻會因為外加磁場對樣品法線表面的角度增加而變小。將實驗數據與理論做擬合及比較,發現旋磁性與阻尼因子會因外加磁場角度增加及溫度降低而變小。
URI: http://hdl.handle.net/11455/17171
其他識別: U0005-2106201013512100
文章連結: http://www.airitilibrary.com/Publication/alDetailedMesh1?DocID=U0005-2106201013512100
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