BiS_2-Layer Gives Giant Birefringence:First-Principles Calculations  

作　　者：王海 

机构地区：[1]College of Materials Science and Engineering,Tongji University

出　　处：《Chinese Physics Letters》2016年第5期115-118,共4页中国物理快报（英文版）

摘　　要：Birefringence attracts increasing attention due to its extensive applications in the imaging spectrometer, laser devices and optical components. Stimulated 5y the discovery of the giant birefringenee （GBF） in LaOBiS2 and AFBiS2~ we explore its origin by checking three compounds with and without the BiS2 layer： Bi20S2 （i.e., BiOBiS2）, Bi202S and LaOA1S2. It is demonstrated that OBF appears only in the compounds with the BiS2 layer and is furthermore confirmed in MOBiS2 （M=AI, Ga, In and Sc） compounds. The result is useful for discovering/developing new-type birefringent crystal or even multifunctional materials.Birefringence attracts increasing attention due to its extensive applications in the imaging spectrometer, laser devices and optical components. Stimulated 5y the discovery of the giant birefringenee （GBF） in LaOBiS2 and AFBiS2~ we explore its origin by checking three compounds with and without the BiS2 layer： Bi20S2 （i.e., BiOBiS2）, Bi202S and LaOA1S2. It is demonstrated that OBF appears only in the compounds with the BiS2 layer and is furthermore confirmed in MOBiS2 （M=AI, Ga, In and Sc） compounds. The result is useful for discovering/developing new-type birefringent crystal or even multifunctional materials.

关 键 词：GBF in of that is HAVE 

分 类 号：TB34[一般工业技术—材料科学与工程]