The Classification of the Optical Vibrational Modes in symmetry material of Trigonal System

三角 晶系对称物质的光学振动模式的分类

Investigation on the Pure Mode Direction of Trigonal System by Slowness Surface

利用慢度曲面研究 三 方 晶系 晶体的纯模轴

By diagonalizing the complete energy matrices for a d ~ 5 configuration ion in a trigonal field the relationship between the local structure around Fe ~ ( 3 + ) in LiNbO_3 : Fe ~ ( 3 + ) system and EPR spectra is studied .

本文作者采用对角化 三角场中d5组态离子的完全能量矩阵的方法，研究了Fe3+离子在LiNbO3：Fe3+ 体系中不同占位时的局域结构与EPR参量的关系。

A method of obtaining the pure mode direction of the trigonal system by the slowness surfaces is introduced .

本文介绍了一种利用慢度曲面 判断 三 方 晶系 晶体纯模 轴的方法。

The results show that at the condition of 30 V and 400 A the composition of trigonal system crystal structure increases and its desulfurization performance is also enhanced with the increase of quench speed ;

结果表明，在电压 30V， 电流400A的条件 下，随着淬速的提高， 三 方晶体的成分增加，脱硫性能也随之增加。