ENERGY-LEVELS AND LINE-INTENSITIES OF PR-3+ IN LIYF4

被引：127

作者：

ESTEROWITZ, L ^{[1
]}

BARTOLI, FJ ^{[1
]}

ALLEN, RE ^{[1
]}

WORTMAN, DE ^{[1
]}

MORRISON, CA ^{[1
]}

LEAVITT, RP ^{[1
]}

机构：

[1] HARRY DIAMOND CTR,ADELPHI,MD 20783

来源：

PHYSICAL REVIEW B | 1979年 / 19卷 / 12期

关键词：

D O I：

10.1103/PhysRevB.19.6442

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

High-resolution polarized absorption and fluorescence spectra of Pr3+ in LiYF4 were measured at temperatures between 10 and 300°K. Energy-level assignments were made assuming electric-dipole transition selection rules for S4 site symmetry. Forty-six energy levels of the 4f2 ground configuration were established, including 44 in the lowest nine multiplets. Crystal-field parameters were determined that gave a rms deviation of 15.8 cm-1 between 41 of the experimental energy levels and calculated values. The parameters were B20=488.9, B40=-1043, B44=1242, B60=-42, Re B64=1213, and Im B64=22.5 cm-1. These parameters were used to obtain the remaining energy levels, yielding a complete energy-level scheme for the 4f2 configuration of Pr3+. The crystal-field parameters for Pr3+ in LiYF4 were compared to those for other ions in this host. A theoretical calculation of line intensities was performed in which the odd-fold crystal-field parameters were obtained from a lattice sum. Line intensities were measured and compared with theory. © 1979 The American Physical Society.

引用

页码：6442 / 6455

页数：14

共 37 条

[1] RADIATIVE TRANSITION PROBABILITIES WITHIN 4FN CONFIGURATIONS - FLUORESCENCE SPECTRUM OF EUROPIUM ETHYLSULFATE [J].