LO声子对强耦合表面极化子基态能量的影响  

The Influence of LO Phonon on the Ground State Energy of Strong Coupling Polaron

作　　者：徐磊[1] 郭振平[1] 

机构地区：[1]延边大学理学院物理系,吉林延吉133002

出　　处：《延边大学学报（自然科学版）》2008年第2期105-107,共3页Journal of Yanbian University（Natural Science Edition）

基　　金：吉林省教育厅科技项目(Z200601);延边大学科技项目(200736)

摘　　要：研究表面极化子的性质对极性材料的应用有着很重要的意义.本文对强耦合表面极化子,只考虑SO声子以及同时考虑SO声子和LO声子影响的两种情况进行了分析,并利用Landau-Pekar变分法计算了表面极化子的基态能量,画图比较了两种情况下基态能量的变化.The research of surface polaron has very important meaning to development of the polar luminescence material. Two kinds of circumstances of strong coupling surface polaron were analyzed . One is considering the influence of SO phonon, another is with the influence of SO phonon and LO phonon. The ground state energy was calculated by using the Landau-Pekar variation method, and the differences of the two kinds of circumstances were compared by illustration.

关 键 词：LO声子 强耦合 Landau-Pekar变分法 极化子 

分 类 号：O469[理学—凝聚态物理]