Effects of the alloy compositions on the phonon-polaritons in ternary mixed crystals  

作　　者：BAO Jin LIANG Xi-xia 

机构地区：[1]Departement of Physics, Inner Mongolia University, Hohhot 010021, China

出　　处：《Optoelectronics Letters》2008年第4期302-306,共5页光电子快报（英文版）

基　　金：the National Natural Science Foundation of China (No. 10764003);the Natural Sci ence Foundation of Inner Mongol of China (No. 200408020101)

摘　　要：Composition dependence of bulk and surface phonon-polaritons in ternary mixed crystals are studied in the framework of the modified random-element-isodisplacement model and the Bom-Huang approximation. The numerical results for Several Ⅱ - Ⅵ and Ⅲ- Ⅴ compound systems are performed, and the polariton frequencies as functions of the compositions for ternary mixed crystals AlxGa1-xAs, GaPxAS1-x, ZnSxSe1-x, GaAsxSb1-x, GaxIn1-xP, and ZnxCd1-xS as examples are given and discussed. The results show that the dependence of the energies of two branches of bulk phonon-polaritons which have phonon-like characteristics, and surface phonon-polaritons on the compositions of ternary mixed crystals are nonlinear and different from those of the corresponding binary systems.

关 键 词：三元混合晶体 声子 极化声子 成分研究 

分 类 号：O76[理学—晶体学]