Electronic and optical properties of the zinc-blende structured LiZnN under pressure  

作　　者：常景 兰俊卿 艾琼 陈向荣 

机构地区：[1]School of Physical Science and Technology,Sichuan University

出　　处：《Chinese Physics B》2009年第7期2938-2944,共7页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant No 10776022)

摘　　要：The electronic and optical properties of the cubic zinc-blende （ZB） structured filled tetrahedral semiconductor α-LiZnN under pressure are investigated by using ab initio plane wave pseudopotential density functional theory method within the generalized gradient approximation （GGA）.The electronic band structure and the density of state under pressure are systematically described.The basic optical constants,including the reflection and absorption spectra,the energy-loss function,the complex refractive index and the dielectric function,are calculated and analysed at different external pressures.Our results suggested that the ZB α-LiZnN is transparent in the partially ultra-violet to the visible light region,and it seems that the transparency is hardly affected by the pressure.The electronic and optical properties of the cubic zinc-blende （ZB） structured filled tetrahedral semiconductor α-LiZnN under pressure are investigated by using ab initio plane wave pseudopotential density functional theory method within the generalized gradient approximation （GGA）.The electronic band structure and the density of state under pressure are systematically described.The basic optical constants,including the reflection and absorption spectra,the energy-loss function,the complex refractive index and the dielectric function,are calculated and analysed at different external pressures.Our results suggested that the ZB α-LiZnN is transparent in the partially ultra-violet to the visible light region,and it seems that the transparency is hardly affected by the pressure.

关 键 词：density functional theory electronic structure optical properties LiZnN 

分 类 号：O472.3[理学—半导体物理]