摘要
采用线性组合和LLP变分相结合的方法研究了极性晶体界面强耦合激子的自陷能,得到了作为激子坐标和电子﹣空穴间距离函数的激子与界面光学(IO)声子相互作用产生的自陷能的表达式,进一步说明了极性晶体界面光学声子的重要性。
The self-trapping energy of the strong-coupling interface exciton in a polar crystal is stunled by using a linear combination operator and the Lee-Low-Pines variational method, the expression of the self-trapping energy which is produced by the interaction between the exciton and interface-optical （IO） phonons is received as the function of the exciton coordinate and the distance between the electron and hole, and the influence of the IO phonon on the self-trapping energy in a polar crystal is confirmed.
出处
《集宁师范学院学报》
2012年第4期101-104,共4页
Journal of Jining Normal University
基金
内蒙古自治区高等学校科学研究项目"极化子效应对低维结构材料中强耦合激子性质的影响"(项目编号:NJZY11287)
关键词
界面光学声子
激子
强耦合
自陷能
interface-optical（IO） phonons
exciton
strong-coupling
self-trapping energy
