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Co^(2+)离子在MgF_2和ZnF_2晶体中的各向异性g因子的理论研究 被引量：3

THEORETICAL EXPLANATION OF THE ANISOTROPIC g FACTORS OF Co^(2+) ION IN RHOMBIC MgF_2 AND ZnF_2 CRYSTALS
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摘要 利用基于基团模型的 3d7离子在斜方对称中的高阶微扰公式计算了MgF2 和ZnF2 晶体中Co2 + 杂质中心的各向异性g因子 gx,gy 和gz.在计算中 ,考虑了共价效应 ,组态相互作用和斜方晶体场的贡献 ;而且与此相关的参量可由所研究的晶体的光谱和结构数据得到 .计算结果与实验符合较好 . The perturbation formulas based on a cluster approach are presented in this paper for the calculation of anisotropic g factors g\-x, g\-y and g\-z for 3 d \+7(Co\+\{2+\}) ion in rhombic octahedral site. In these formulas, the contributions from covalency effects, configuration interaction and rhombic crystal field are considered and the parameters related to the three contributions can be determined from the optical spectra and the structural data of the studied crystals. From these formulas, the EPR parameters g\-x, g\-y and g\-z for Co\+\{2+\} in rhombic MgF\-2 and ZnF\-2 crystals are calculated. The results are in agreement with the experimental values.
作者 董会宁 邬劭轶 郑文琛
机构地区 四川师范大学固体物理研究所 四川大学材料科学系 四川大学材料科学系 中国科学院国际材料物理中心
出处 《波谱学杂志》 CAS CSCD 北大核心 2002年第3期275-280,共6页 Chinese Journal of Magnetic Resonance
关键词 各向异性 G因子 电子顺磁共振 EPR 晶体场 配位场 CO^2+离子 MGF2 ZnF2 钴(Ⅱ) 共价效应 氟化镁晶体 氟化锌晶体 EPR crystal and ligand field theory Co\+\{2+\} MgF\-2 ZnF\-2
分类号 O732 [理学—晶体学] O737 [理学—晶体学]
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参考文献24

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同被引文献41

  • 1阮刚,段昌奎.Pr^(3+)离子能级理论结果的参数拟合分析[J].重庆邮电学院学报（自然科学版）,2005,17(1):81-84. 被引量：5
  • 2董会宁,蔡雪梅,邬劭轶.ThSiO_4晶体中Yb^(3+)离子的自旋哈密顿参量的理论研究[J].重庆邮电学院学报（自然科学版）,2005,17(2):144-146. 被引量：1
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波谱学杂志
2002年 第3期

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