波谱学杂志 ›› 1992, Vol. 9 ›› Issue (2): 149-155.

• 研究论文 • 上一篇    下一篇

单晶变角EPR谱的解释I.掺Cr3+铝铵矾单晶的EPR

沙昆源, 王楠   

  1. 南开大学化学系, 天津 300071
  • 收稿日期:1991-06-03 修回日期:1991-09-29 出版日期:1992-06-05 发布日期:2018-01-20
  • 基金资助:
    国家自然科学基金资助项目

EXPLANATION FOR ANGULAR VARIATION OF THE EPR LINES OF SINGLE CRYSTAL (Ⅰ) EPR of Cr3+-doped Aluminium ammonium alum

Sha Kunyuan, Wang Nan   

  1. Department of Chemistry, Nankai University, Tianjin 300071
  • Received:1991-06-03 Revised:1991-09-29 Online:1992-06-05 Published:2018-01-20

摘要: 对本征场的计算方法作了新的分析,提出了新的计算方案,根据这方案编写了程序,并应用这一程序对掺Cr3+铝铵矾单晶变角的EPR谱作了解析,得到了更加可靠更为准确的自旋-Hamilton参数;D=0.04845cm-1,gx=gy=1.9761,g2=1.9752.用上述参数,对各个离子不同角度下的广义本征场计算的共振磁场与实验数据拟合很好.充分说明采用此法处理EPR的优越性.

关键词: 本征场方法, 掺Cr3+单晶EPR

Abstract: In this paper we have proposed a new method by which the eigenfield equation can be solved more easily. A general computer programme has been written to calculate EPR spectra using this method. The programme has been applied to investigate angular variation of the EPR Cr3+-doped aluminum ammonium alum. The angular variation of the EPR lines for Cr3+ has been fitted successfully by this method. The spin-Hamittonian parameters were obtained:
D=0.04845cm-1, g2=1.9752 gx=gy=1.9761
This example fully illustrates the utility of the eigenfield method.

Key words: Eigenfield, EPR of Cr3+