Abstract
k-odd electrostatic crystal-field parameters (βqk) involved in the Judd-Ofelt theory of electronic transitions within the 4fn configuration are computed including contributions of point charges, consistent dipoles, and quadrupoles induced in a crystalline lattice (calculated and experimental intensity parameters Ωλ are compared). The coefficients (γqk) involved in the pseudo-multipolar-field theory are also computed for 14 rare-earth or rare-earth—doped compounds (i.e., for LiYF4: Nd3+, YOBr, and YOCl: Eu3+; BaFCl and SrFCl: Sm2+; BaTiO3: Eu3+, NdAlO3, and LaAlO3: Eu3+; Nd2 O3, Nd2 O2S, LaF3, and LaCl3: Nd3+; Y2 O3 and KY3 F10: Eu3+). The contribution of γqk to transition rates is evaluated for the D05F47 and