OPTICAL-SPECTRUM OF CR3+ IN SPINEL LIGA5O8
OPTICAL-SPECTRUM OF CR3+ IN SPINEL LIGA5O8
复制标题
DOI：
10.1088/0022-3719/8/22/031
复制
发表时间：
1975-01-01
期刊：
影响因子：
--
通讯作者：
MYLNIKOVA, IE
中科院分区：
文献类型：
--
作者：
SZYMCZAK, H;WARDZYNSKA, M;MYLNIKOVA, IE
研究了铬离子在LiGa 5 O 8尖晶石中的光吸收和发光光谱.在1.6- 300 K的温度范围内进行了测量。吸收光谱由与跃迁4A 2到4 T2和4A 2到4 T1连接的宽的（分成三个）自旋允许带和与从基态4A 2到激发态2 E、2 T1和2 T2的自旋禁戒跃迁连接的尖锐线组成。吸收测量的结果与EPR测量的结果一起解释的晶体场理论的框架。
The optical absorption and luminescence spectra of chromium ions in the LiGa 5 O 8 spinel are investigated. Measurements are made in the temperature range 1.6-300K. The absorption spectra consist of broad (split into three) spin-allowed bands connected with the transitions 4 A 2 to 4 T 2 and 4 A 2 to a 4 T 1, and sharp lines connected with spin-forbidden transitions from the ground state 4 A 2 to the excited states 2 E, 2 T 1 and 2 T 2. The results from absorption measurements together with the results of EPR measurements are interpreted in the framework of crystal-field theory.