摘要
采用Ｈｕｙｂｒｅｃｈｔｓ线性组合算符和变分法相结合的方法，研究了极性晶体膜内电子与体纵光学声子弱耦合、与表面光学声子强耦合系统的基态能量，得到了作为膜厚和耦合常数函数的极化子的自陷能，对ＫＣｌ晶体进行了数值计算，结果表明。
The ground state energy of the strong coupling of electron surface optical phonons system with weak coupling of electron bulk longitudinal optical phonons in a slab of polar crystal was studied by using Huybrecht’s linear combination operator and variational method. The self trapping energy of the polaron was obtained as functions of the slab thickness and the coupling constants. Numerical calculations for KCl crystal show that the contributions of interaction between the electron and the different branch of phonons to the self trapping energy are greatly different.
出处
《红外与毫米波学报》
SCIE
EI
CAS
CSCD
北大核心
1999年第3期231-236,共6页
Journal of Infrared and Millimeter Waves
基金
中国科学院激发态物理开放研究实验室和半导体超晶格国家重点实验室科学基金
