Electron correlation effects on transition probabilities of LaCl₃ : Pr³⁺

Abstract

Corrections to the forced dipole transition probabilities between states of the 4f^N configuration of Pr³⁺, which are due to several classes of effective operators representing correlation effects, are evaluated for the LaCl₃ : Pr³⁺ system. The transitions ³ H ₄↔³ F ₄, ¹ G ₄, ³ F ₃, ³ H ₅ and ³ P ₀↔³ F ₄, ³ H ₄, ³ F ₃ and ³ H ₅ are considered. The effective operators corresponding to the most significant pairs of intermediate configurations are taken into account. The correlation effects modify the results of the Judd-Ofelt theory by tenths of a per cent. Correlation effects may also be responsible for the ³ P ₀↔³ F ₃, ³ H ₅ transitions which are forbidden within the standard Judd-Ofelt theory.