摘要Owing to the novel crystal structure, ε-Co nanoparticles with an average diameter of 12 nm are synthesized and the microwave magnetic properties of the epoxy resin composite with 50 vol% εCo particles are measured in the frequency range 0.1-7 GHz. The experimental resonance frequency (4.7 GHz) matches well with the values obtained by the theoretical calculation with the Kittel equation and fitting the experimental permeability dispersion curve via the Landau-Lifshitz equation. Hence the resonance peak is attributed to natural resonance mode. This work is believed to be beneficial for further understanding microwave applications of the novel ε-Co nanoparticles.
Abstract：Owing to the novel crystal structure, ε-Co nanoparticles with an average diameter of 12 nm are synthesized and the microwave magnetic properties of the epoxy resin composite with 50 vol% εCo particles are measured in the frequency range 0.1-7 GHz. The experimental resonance frequency (4.7 GHz) matches well with the values obtained by the theoretical calculation with the Kittel equation and fitting the experimental permeability dispersion curve via the Landau-Lifshitz equation. Hence the resonance peak is attributed to natural resonance mode. This work is believed to be beneficial for further understanding microwave applications of the novel ε-Co nanoparticles.
(Other topics in magnetic resonances and relaxations?)
引用本文:
YANG Yong;XU Cai-Ling;QIAO Liang;Li Xing-Hua;LI Fa-Shen. Microwave Magnetic Properties and Natural Resonance of ε-Co Nanoparticles[J]. 中国物理快报, 2010, 27(5): 57501-057501.
YANG Yong, XU Cai-Ling, QIAO Liang, Li Xing-Hua, LI Fa-Shen. Microwave Magnetic Properties and Natural Resonance of ε-Co Nanoparticles. Chin. Phys. Lett., 2010, 27(5): 57501-057501.
[1] Song W L, Yuan J, Hou Z L and Cao M S 2009 Chin. Phys. Lett. 26 057702 [2] Xue D S, Li F S, Fan X L and Wen F S 2008 Chin. Phys. Lett. 25 4120 [3] Huang Y Q, Yuan J, Song W L, Wen B, Fang X Y and Cao M S 2010 Chin. Phys. Lett. 27 027702 [4] Zheng H, Yang Y, Wen F S, Yi H B, Zhou D and Li F S 2009 Chin. Phys. Lett. 26 017501 [5] Liu X G, Geng D Y, Meng H, Li B, Zhang Q, Kang D J et al 2008 J. Phys. D: Appl. Phys. 41 175001 [6] Shi X L, Cao M S, Yuan J and Fang X Y 2009 Appl. Phys. Lett. 95 163108 [7] Che R C, Peng L M, Duan X F, Chen Q and Liang X L 2004 Adv. Mater. 16 401 [8] Kang Y Q, Cao M S, Yuan J and Shi X L 2009 Mater. Lett. 63 1344 [9] Shirakata N H Y, Ishitsuka M, Teramoto A and Ohmi T 2008 IEEE Trans. Magn. 44 2100 [10] Shi X L, Cao M S, Yuan J, Zhao Q L, Kang Y Q, Fang X Y et al 2008 Appl. Phys. Lett. 93 183118 [11] Cao M S, Yuan J, Liu H T, Fang X Y and Zhu J 2003 Mater. Des. 24 31 [12] Huang Y Q, Hou Z L, Song W L, Yuan J and Cao M S 2009 Chin. Phys. Lett. 26 057701 [13] Lu B, Dong X L, Huang H, Zhang X F, Zhu X G, Lei J P et al 2008 J. Magn. Magn. Mater. 320 1106 [14] Liu J R, Itoh M, Jiang J and Machida K I 2004 J. Magn. Magn. Mater. 271 L147 [15] Liu J R J R, Itoh M, Jiang J and Machida K I 2004 J. Magn. Magn. Mater. 277 251 [16] Kittel C 1948 Phys. Rev. 73 155 [17] Li F S, Wen F S, Zhou D, Qiao L and Zuo W L 2008 Chin. Phys. Lett. 25 1068 [18] Dinega D P and Bawendi M G 1999 Angew. Chem. Int. Ed. 38 1788 [19] Sun S H and Murray C B 1999 J. Appl. Phys. 85 4325 [20] Murray C B, Sun S H, Doyle H and Betley T 2001 MRS Bull. 26 985 [21] Zhang X F, Dong X L, Huang H, Liu Y Y, Wang W N, Zhu X G et al 2006 Appl. Phys. Lett. 89 053115 [22] Wu M Z, Zhang Y D, Hui S, Xiao T D, Ge S H, Hines W A et al 2002 Appl. Phys. Lett. 80 4404 [23] Aharoni A 1996 Introduction to the Theory of Ferromagntism (Oxford: Clarendon) chap 8 p 181 [24] Deng L J, Zhou P H, Xie J L and Zhang L 2007 J. Appl. Phys. 101 103916 [25] Wen F S, Yi H B, Qiao L, Zheng H, Zhou D and Li F S 2008 Appl. Phys. Lett. 92 042507 [26] Li J G, Huang J J, Qin Y and Ma F 2007 Mater. Sci. Eng. B 138 199 [27] Kittel C 1948 Phys. Rev. 73 155 [28] Held G A, Grinstein G, Doyle H, Sun S and Murray C B 2001 Phys. Rev. B 64 012408 [29] Liu Y, Sellmyer D J and Shindo D 2006 Handbook of Advanced Magnetic Materials (Beijing: Tsinghua University) vol 4 chap 13 p 420
2010, Vol. 27 
