具有弱周期调制的形变超晶格退道效应  

Dechanneling Effects for Strained Superlattice with weak—periodic modulation

作　　者：邵明珠[1,2] 黄朝良[3] 白炳良[4] 

机构地区：[1]东莞理工学院 [2]龙岩学院物理系,福建龙岩364000 [3]龙岩学院物理系 [4]漳州师范学院物理系

出　　处：《漳州师范学院学报（自然科学版）》2003年第1期52-57,61,共7页Journal of ZhangZhou Teachers College（Natural Science)

摘　　要：把超晶格“折沟道”对粒子的作用等效为形状相似的弱周期调制。利用正弦平方势把粒子运动方程化为具有外周期弱调制的非线性微分方程,导出了退道系数与晶格形变的关系。利用多尺度法研究了系统的主共振和子共振。s: The effect on a particle motion by a deflected channel is equivalent to modulation with a weak—periodic potential liked a deflected channel. The motion equation of a particle has been reduced to the nonlinear differentia equation with a weak—periodic modulation by using sine—squared potential. The dechanneling fraction has been derived for a strained superlattice. The main—resorence and sub— resorence have been inverstigated using multi—scale method.

关 键 词：超晶格 退道效应 弱周期调制 粒子运动方程 退道系数 晶格形变 多尺度法 

分 类 号：O733.1[理学—晶体学]