Abstract
The 91×91 complete energy matrix of 4f2 configuration ion praeseodymium in octahedral cubic crystal field has been constructed based upon the combination of Racah’s group-theoretical consideration with Slater’s wavefunctions. The energy levels of praseodymium (Pr3+) in hexachloride elpasolite crystals Cs2NaYCl6 have been calculated. The calculated results display a good agreement with the experimental values, which implies that the complete energy matrix method can be received as a recommendable tool to perform a theoretical analysis to the doped crystal.
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