Investigations of the optical band positions and spin-Hamiltonian parameters for two trigonal Cr3+ centers in Cs2NaGaF6: Cr3+ crystals

被引：1
|
作者：
Zhang, Xin-Xin [1 ]
Mei, Yang [1 ,2 ]
Liu, Gang [1 ]
Zheng, Wen-Chen [3 ]
机构：
[1] Mianyang Normal Univ, Sch Phys & Elect Engn, Mianyang 621000, Peoples R China
[2] Mianyang Normal Univ, Res Ctr Computat Phys, Mianyang 621000, Peoples R China
[3] Sichuan Univ, Dept Mat Sci, Chengdu 610064, Peoples R China
来源：
OPTIK | 2016年 / 127卷 / 18期
关键词：
Optical spectrum; Electron paramagnetic resonance; Crystal- and ligand-field theory; Cr3+; Cs2NaGaF6; ATOMIC SCREENING CONSTANTS; IONS;
D O I：
10.1016/j.ijleo.2016.05.058
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
This paper reports the unified calculations of the optical band positions and spin Hamiltonian parameters (g factors g(parallel to), g(perpendicular to) and zero-field splitting D) for two trigonal Cr3+ centers in Cs2NaGaF6: Cr3+ crystals. The calculations use the complete diagonalization of energy matrix method based on the two-spin-orbit-parameter model which takes account of the contributions from both the spin-orbit parameter of central d(n) ion (in the conventional crystal-field theory) and that of ligands. The calculated results are rationally coincident with the experimental valus. The slight local lattice distortions in both Cr3+ centers are also estimated from the calculations and the causes are discussed. (C) 2016 Elsevier GmbH. All rights reserved.
引用
收藏
页码：7128 / 7131
页数：4
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