Cs_2NaYCl_6:Sm^(3+)晶体的光学与磁学性质研究

Theoretical Research of the Optical Spectra and EPR Parameters for Cs_2NaYCl_6:Sm^(3+) Crystal

掺杂三价稀土离子(Re3+)的Cs2NaYCl6晶体,因具有优良的光学和磁学性质而得到了高度的重视。本文利用晶体场理论和自旋哈密顿理论分别对Cs2NaYCl6:Sm3+晶体的光谱和电子顺磁共振谱(EPR)进行分析和计算。在叠加模型的基础上,通过对角化24×24能量矩阵研究Cs2NaYCl6:Sm3+时的能级、电子顺磁共振参数和超精细结构常数。计算结果与观测值能够较好的吻合并对结果进行讨论。

The important material Cs^NaYC16 doped with trivalent rare earth ions have received much attention because of its excellent optical and magnetic properties. This article will analysis and calculate Cs2NaYCl6：Sm3＋ Crystal spectroscopy and electron paramagnetic resonance spectroscopy （EPR） in terms of the crystal field theory and the theory of spin Hamiltonian separately. Based on the superpositiort model, in this paper the crystal field energy levels, the electron paramagnetic resonance parameters g factors of Sm3＋ and hyperfine structure constants of 147Sm3＋ and 149Sm3＋ isotopes in Cs2NaYCl6 crystal are studied by diagoualizing the 24x24 energy matrix. The calculated results are in reasonable agreement with the observed values. The results are discussed.