摘要
用基于基团途径(或半经验的分子轨道法)的微扰公式计算了Co2+离子在Zn(BF4)2.6H2O晶体中的三角对称Zn2+位置的自旋哈密顿参量(g因子和超精细结构常数).通过计算,我们发现Co2+杂质中心的八面体是三角伸长的,且常数为负值.对上述结果的合理性进行了讨论.
The spin-Hamiltonian parameters ( g factors g∥, g⊥ and hyperfine structure constants A∥, A⊥) of Co^2+ at the trigonal Zn^2+ site in Zn(BF4)2·6H2O:Co^2+ crystal are calculated from the perturbation formulas based on the cluster approach. From the calculations, it is found that the oxygen (or water) octahedron surrounding Co^2+ ion is trigonally elongated and the sign of constant A ⊥ is negative. The results are discussed.
出处
《四川大学学报(自然科学版)》
CAS
CSCD
北大核心
2006年第4期816-819,共4页
Journal of Sichuan University(Natural Science Edition)
基金
重庆工学院科研启动基金资助项目