SrLaAlO_4晶体掺Co^(2+)离子的吸收光谱解释

Investigation of the Optical Spectra for Co^(2+) ions in SrLaAlO_4 Crystal

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摘要采用赵、杜提出的半自洽场(semi-SCF)d-轨道波函数模型,利用强场四角图象近似,解释了掺杂晶体SrLaAlO4:Co2+的吸收光谱。计算结果表明:18830 cm-1不是一条双中心跃迁,而是4E(4T1,e2t25)态对基态的跃迁;理论分析结果与实验值吻合较好。 In a tetragonal strong-field approximation,the optical spectra in the vicinity of substitutional Co2＋ impurities in SrLaAlO4 compound is investigated by means of Zhao＇s Semi-SCF d-orbit Wave Functions model of free Co 2＋ ions.It is found that the transition 18830 cm-1 is not a two-electron transition but 4E（4T1,e2t52） to ground state,Good agreement between the results and the experimental findings is attained.

作者曾体贤

机构地区西华师范大学物理与电子信息学院

出处《西华大学学报（自然科学版）》 CAS 2010年第4期33-35,63,共4页 Journal of Xihua University:Natural Science Edition

基金四川省教育厅青年基金(09ZB089) 西华师范大学科研启动基金(09B003)

关键词晶体场理论 SrLaAlO4:Co2+晶体吸收光谱 ligand fields SrLaAlO4：Co2＋ Crystal optical spectra

分类号 O734 [理学—晶体学]

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SrLaAlO_4晶体掺Co^(2+)离子的吸收光谱解释

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