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Ru^(3+)离子在Y_3Al_5O_(12)晶体中的缺陷结构和自旋哈密顿参量研究 被引量:1

Studies of the defect structure and spin-Hamiltonian parameters for Ru^(3+) ions in Y_3Al_5O_(12) crystals
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摘要 采用合适的模型和参量,用适于强场低自旋(S=1/2)d5组态的微扰公式计算了4d5离子Ru3+在Y3Al5O12晶体中的自旋哈密顿参量(g因子g∥,g⊥和超精细结构常数A∥和A⊥).通过计算,合理地解释了这些自旋哈密顿参量并获得了Ru3+杂质中心在Y3Al5O12晶体中的缺陷结构. In this paper, by using the suitable model and parameters, the spin-Hamiltonian parameters (g factors g//, g⊥ and A//,A⊥) of Ru3+ ions in Y3Al5O12 crystals are calculated from the perturbation formulas related to low spin (S = 1/2) strong field d5 configuration. From the calculations, the spin-Hamiltonian pa- rameters of Y3Al5O12 :Ru3+ are explained reasonably and the defect structure for the Ru3+ centers in Y3Al5O12 crystals is obtained.
作者 杨维清 何绿
出处 《四川大学学报(自然科学版)》 CAS CSCD 北大核心 2008年第6期1420-1422,共3页 Journal of Sichuan University(Natural Science Edition)
基金 成都信息工程学院科研基金(200809)
关键词 光谱 电子顺磁共振 晶体场理论 Ru3+离子 optical spectra, EPR, crystal-field theory, Ru3+
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参考文献19

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二级参考文献1

  • 1赵敏光,晶体场理论.不可约张量算符法,1988年

共引文献7

同被引文献18

  • 1WuShao-Yi(邬劭轶),FuQiang(付强),LinJi-Zi(林季资)etc.TheoreticalstudiesofthelocalstructuresandtheEPRparametersforRu^3+inthegarnets(掺Ru石榴石的局部结构和电子顺磁共振参量的理论研究)[J].OpticalMateri-als29(2007)1014--1018.
  • 2Miller I A, Offenbacher E L. Electron spin resonance of Ru^3+ in yttrium gallium garnet and yttrium aluminum garnet [J]. Phys Rev, 1968, 166:269.
  • 3Du M L ,Rudowicz C . Gyromagnetic facters and zero- fields splitting of t3 terms of Cr^3+ clusters with trigonal symmetry A1203, C3MgCl3 and C3MgBr3 [J]. Phys Rev B, 1992 ,46:8974.
  • 4Abragam A, Bleaney B. Electron paramagnetic resonance of transitions[M]. London : Oxford University Press , 1970.
  • 5Zhao M G , Xu J A , Bai G R , et al . d-orbital theory and high-pressure effects upon the EPR spectrum of ruby [J].Phys Rev B , 1983 , 27 : 1516.
  • 6Zheng W C, Fang W ,He L, et al . Spin Hamilton parameters and defect structure for the x-ray-induced Nb^4+ center in LiNbO3 crystal [l]. J Alloys Comp , 2008 453 : 32.
  • 7Mc Garvey B R .The isotropic hyperfine interaction [J]. J Phys Chem ,1967 ,71:51.
  • 8Fraga S , Saxena K M S , Karwowski J . Handbook of atomic data [M].New York :Elsevier Press, 1976.
  • 9Weast R C . CRC Handbook of chemistry and physics [M]. Boca Raton :CRC Press,1989 ,B-272.
  • 10Newman D J , NgB . The superposition model of crys- tal field [J]. Rep Prog Phys , 1989 ,52:699.

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