三元混晶中电子极化势与极化电荷  

Polarization Potential and Polarized Charge of a Electron in a Ternary Mixed Crystal

作　　者：李冰[1] 梁希侠[1] 

机构地区：[1]内蒙古工业大学基础部,内蒙古大学物理学系

出　　处：《内蒙古大学学报（自然科学版）》1994年第3期288-294,共7页Journal of Inner Mongolia University：Natural Science Edition

摘　　要：本文计及双支纵光学声子模的作用，采用微扰法导出了极性三元混晶Ａ＿ｘＢ＿（１－ｘ）Ｃ中极化子的二级近似波函数，进一步计算了电子的极化势和极化电荷密度．数值计算了混晶Ａｌ＿ｘＧａ＿（１－ｘ）Ａｓ和ＺｎＴｅ＿ｘＳｅ＿（１－ｘ）中极化势与极化电荷密度对组分ｘ的依赖关系，并对结果进行了讨论．he second order approximation wave function of a polaron in a ternary mixed crystal is de-rived by a pertubation method,the polarization potential and the polarized charge density of aelectron are also calculated.The numerical results are given for Al_xGa_(1-x)As and ZnTe_xSe_(1-x) with different composition x,and the results are discussed.

关 键 词：三元混晶 极化势 极化电荷 

分 类 号：O471.3[理学—半导体物理]