There is a weak bulk coupling but a strong surface coupling between the electrons and phonon for many polar crystals.
有不少的极性晶体，电子与体纵光学声子的耦合弱，但与表面光学声予的耦合强。
2
In this paper, the interaction between surface electron and surface optical phonon for a strong coupling polyatomic polar crystals in magnetic field is studied.
本文研究磁场中强耦合多原子极性晶体中表面电子和表面光学声子的相互作用。
3
The phonon states of surface and multi-film (AB) interface systems have been studied by using the infinite order perturbation theory for linear systems.