Effect of the Pressure on Iron Magnetic Resonance and Faraday Rotation in Ce:YIG
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摘要: 研究了Ce:YIG晶体中与交换作用等效的分子场以及阻尼系数随晶体生长环境压强的变化,给出了定量关系。据此研究了该晶体的铁磁共振线宽和Ce3+离子的法拉第旋转角随压强的变化,在压强为1.33~13.30 Pa范围内,计算得到的Ce:YIG晶体的铁磁共振线宽以及Ce3+离子的法拉第旋转角与实验符合较好。结果表明,Ce:YIG晶体的磁性和磁光性能都对压强有一定的依赖性,适当控制晶体生长环境压强的大小,对制备出高性能的磁光材料是重要的。Abstract: The variations of the damping coefficient and molecule field with the pressure are investigated, and the quantitative forms are given in Ce:YIG crystal. The variations of the line width of iron magnetic resonance and the magneto-optic Faraday rotations with the pressure are presented. The calculated results are agreement with the measured values in the pressure range of 1.33-13.30 Pa. The investigation indicates the dependence of the magnetic and magneto-optic properties of Ce:YIG crystal on the pressure. It is important that the pressure should be controlled properly in the preparation of materials.
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Key words:
- YIG crystal /
- pressure /
- damping coefficient /
- resonance line width /
- Faraday rotation
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Kim H, Grishin A M, Rao K V, et al. Ce-substituted YIG films grown by pulsed laser deposition for magneto-optic waveguide devices [J]. IEEE Trans Magn, 1999, 35(5): 3163-3165. Rodrigue G P, Meyer H, Jones R V. Resonance measurements in magnetic garnets [J]. J Appl Phys, 1960, 31(5): 376-382. Reyher H J, Faust B, Sugg B, et al. Optically detected magnetic resonance via the magnetic circulai dichroism of absorption of cerium impurities in bulk paramagnetic terbium gallium garnet [J]. J Phys: Condense Matter, 1997, 9(42): 9065-9082. McKinstry, Kevin D, Patton C E, et al. Low power nonlinear effects in the ferromagnetic resonance of yttrium iron garnet [J]. J Appl Phys, 1985, 58(2): 925-929. Leycuras C, Le Gall H, Desvignes J M, et al. Magnetic and magnetooptical properties of cerium YIG single crystal [J]. IEEE Trans Magn, 1985, 21(5): 1660-1662. Gomi M, Satoh K, Furuyama H, et al. Sutter deposition of Ce-substituted iron garnet films with giant magneto-optical effect [J]. IEEE Trans Magn, 1990, 5(4): 294-230. Xu Y, Zhang G Y, Duan M Q. Calculations of the faraday rotation in re-substituted iron garnets [J]. J Appl Phys, 1993, 73(10): 6133-6135. Zhang G Y, Xu Y, Yang J H. The influence of admixing of different multiplets on the magnetic moment and faraday effect of rare earth ions in garnets [J]. Acta Phys Sin, 1994, 3(8): 608-616. Xu Y, Yang Jie Hui, Zhang X J. Quantum theory of the strong magneto-optical effect of ce-substituted yttrium iron garnet [J]. Phys Rev B, 1994, 50(18): 13428-13434. Jiang S T, Li W. Condensed Matter Magnetic Physics [M]. Beijing: Science Press, 2003. (in Chinese) 姜寿亭, 李卫. 凝聚态磁性物理 [M]. 北京: 科学出版社, 2003. Patton C E. Effective linewidth due to porosity and anisotropy in polycrystalline yittrium iron garnet and Ca-V-substituted yittrium iron garnet at 10 GHz [J]. Phys Rev, 1969, 179(2): 352-358. Zhao Y H, Ma X Q, Wang Z J. The effect of damping coefficient on the saturated magnetization field and configuration of domain structures [J]. Journal of Nantong University, 2006, 5(1): 22-24. (in Chinese) 赵迎华, 马星桥, 王子军. 阻尼系数对Gd2. 34Tb0. 66Fe5O12饱和磁场和磁畴结构的影响 [J]. 南通大学学报, 2006, 5(1): 22-24. Crossley W A, Copper R W, Page J L, et al. Faraday rotation in rare-earth iron garnets [J]. Phys Rev, 1969, 181(2): 896-904. Xia W S, Zhang G Y, Wei M, et al. Theoretical calculation on the magneto-optic property of Ce-substituted yttrium iron garnets crystallized at high temperature [J]. Journal of Magnetic Materials and Devices, 2008, 2: 25-27. (in Chinese) 夏往所, 张国营, 魏明, 等. 高温结晶Ce: YIG晶体磁光性能计算 [J]. 磁性材料及器件, 2008, 2: 25-27.
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