【摘要】 本文计算了电离施主的振动电流对半无限的第Ⅰ类半导体超晶格内电子集体激发表面模式的修正,结果是在整个波矢范围内频率降低,而且在波矢的一些区间内,模式有微小的分裂.更多还原

【Abstract】 The modifications of the surface electronic collective excitation modes of a semi-infinite I-type semiconducting superlattice,produced by the oscillation current of ion-ized donors,are calculated.The results are that the frequencies of the surface modesare softened in the whole range of the wave vector,and in some regions of the wavevector each mode splits into two modes separated closely from each other.更多还原