摘要
考虑原子间次近邻相互作用,讨论了具有在位势的一维双原子链中杂质引起的局域振动,得到次近邻互作用力、在位势共同作用下局域模的存在条件及振动的基本特征.
Considering the secondary neighbor interactions between the atoms in a diatomic linear chain with on-site potential,the lattice vibration equation of the diatomic chain with an impurity is solved,and the basic feature of the effect of on-site potential and the secondary neighbor interaction on the symmetric local vibration are discussed.
出处
《大学物理》
北大核心
2017年第11期15-17,72,共4页
College Physics
基金
国家自然科学基金(11465015)资助
关键词
杂质
次近邻作用
在位势
局域模
impurity
secondary neighbor interactions
on-site potential
local vibration
