There is a weak bulk coupling but a strong surface coupling between the electrons and phonon for many polar crystals. In this paper

the influence of the electron interaction with both the weak coupling bulk longitudinal optical (LO) and the strong coupling surface optical (SO) phonons on the temperature characteristic of the surface polaron is discussed. The temperature dependences of the vibration frequency

the induced potential and the effective mass of the surface polaron are investigated by using a linear-combination-operator method. Numerical calculation

for AgBr crystal as an example

illustrates that the vibration frequency

the induced potential and the effective mass of surface polaron will decrease with increasing temperature.