波谱学杂志 ›› 1997, Vol. 14 ›› Issue (4): 357-362.

• 研究论文 • 上一篇    下一篇

ZnS:Co2+晶体顺磁g因子的理论研究

吴晓轩1, 杜懋陆2   

  1. 1 四川轻化工学院物理教研室, 自贡 643033;
    2 西南民族学院物理系, 成都 610041
  • 收稿日期:1996-12-25 修回日期:1997-03-10 出版日期:1997-08-05 发布日期:2018-01-22
  • 作者简介:吴晓轩,男

THEORETICAL INVESTIGATION OF g-FACTOR IN ZnS: Co2+

Wu Xiaoxuan1, Du Maolu2   

  1. 1 Department of Physics, Sichuan Institute of Light Industry and Chemical Technology, Zigong 643033;
    2 Department of Physics, South Western Institute for Nationalities, Chengdu 610041
  • Received:1996-12-25 Revised:1997-03-10 Online:1997-08-05 Published:2018-01-22

摘要: 提出了一个计算二元半导体中过渡金属(TM)离子顺磁g因子的共价模型,并用以计算了ZnS:Co2+晶体的g因子,计算值与实验值吻合很好,从而解决了用经典方法得到的g因子值与实验值相比偏小的问题.同时,通过对ZnS:Co2+晶体晶场光谱和顺磁g因子的分析,本文建议,在ZnS:Co2+晶体中,Co2+离子的t2g电子和eg电子部分处于反键轨道部分处于成健轨道.

关键词: 晶体场理论, 电子顺磁共振, 光谱, g因子

Abstract: This paper presents a covalent model to the calculation of the g factor in ZnS:Co2+ crystal, in which the contribution due to the s. o. coupling of ligand ions is induded. The odculated results are in agreement with the experimental data, then, the problem that calculated value of g factor is smaller than experhaental finding kas been solved. In the meantime, we also analyzed tke spectra and the g factor of ZnS:Co2+, the analysis suggests that some of the d electrons of transition metal (TM) ion in ZnS:Co2+ are located at anti bonding orbital and the others at bonding orbital.

Key words: Crystal-field theory, EPR, Spectra, g-factor