Theoretical Calculations of Optical Spectra and Their Pressure-Induced Shifts of MgAl2P4:Cr3+

• 来源期刊: 理论物理通讯(英文版)
• 年，卷（期）: 2008,（5）
• 页码范围: 1339-1344
• 页数: 6页
• 语种: 英文

摘要

The energy levels of spectrum, wavefunctions and crystal-field parameters of MgA1204:Cr3+ at normal pressure have been calculated by the means of diagonalizing the complete d3 energy matrix (DCEM). With these results, the g factor of the ground state at normal pressure and the pressure-induced shift (PS) of the spectral levels are also calculated uniformly, and the calculated results are all in good agreement with the experimental ones. And the contributions of various crystal-field parameters to the energy levels at normal pressure and the variational rates of the R1 line shifting with the pressure are calculated, from which the physical origin of the red shift of the R1 line shifting with increasing pressure have been clearly shown.