| SrLaAlO4:Co2+的四角场分裂及双中心跃迁的研究 |
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| 引用本文： | 尔古打机,解华东,杜懋陆.SrLaAlO4:Co2+的四角场分裂及双中心跃迁的研究[J].西南民族学院学报(自然科学版),2002,28(1):25-28. |
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| 作者姓名： | 尔古打机 解华东 杜懋陆 |
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| 作者单位： | 西南民族学院物理系，西南民族学院物理系，西南民族学院物理系 成都 610041，成都 610041，成都 610041 |
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| 摘 要： | 联系SrLaAlO4（SLA）晶体的结构数据，在立方场和四角场下对SrLaAlO4:Co^2 晶体的能级进行了计算，得到了与实验符合很好的理论计算值。由四角场下的计算结果，我们重新对光谱进行了识别。我 们的计算结果验证了Aleshkevych等关于18830cm^-1是一条双中心跃迁的猜测，同时也纠正了他们关于这一双中心跃迁的错误识别。
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| 关 键 词： | SrLaAlO4：Co^2＋ 晶体结构 立方场 四角场分裂 光谱识别 双中心跃迁 钴掺杂 能级 |
| 文章编号： | 1003-2843(2002)01-0025-04 |
| 修稿时间： | 2001年10月25 |
An investigation of tetragonal field splitting and two-electron transition in SrLaAlO4:Co2+ |
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| Ergu Daji,XIE Hua-dong,DU Mao-lu.An investigation of tetragonal field splitting and two-electron transition in SrLaAlO4:Co2+[J].Journal of Southwest Nationalities College(Natural Science Edition),2002,28(1):25-28. |
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| Authors: | Ergu Daji XIE Hua-dong DU Mao-lu |
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| Abstract: | The energy levels of Co2+ ion in SrLaALO4 crystal with cubic and tetragonal symmetry are calculated. In the calculation the crystal field parameters are determined by using crystal structure data of SrLaALO4 crystal. The theoretical results are in good agreement with the experiments. The absorption spectrum are re-assigned from the theoretical results. The results reconfirm that, the 18830cm-1 band is connected with two-electron transition, and corrects the assignment about this transition. |
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| Keywords: | SrLaAlO_4:Co~(2+) crystal cubic field tetragonal field absorption spectrum two-electron transition |
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