Temperature dependence of the acoustic deformation potential surface polaron

The temperature characteristic of the acoustic deformation potential surfac e polaron in polar crystal, which has a weak coupling with surface phonons and a strong coupling with surface optical phonons was studied by using lin ear-combination-operator method. Numerical calculation for Ki crystal as an example, illustrated that the vibration frequency lambda and effective mas s m(2)(*) of the acoustic deformation potential surface polaron decrease wi th increasing temperature, but the induced potential V-i(a) of the acoustic deformation potential surface polaron will increase with increasing temper ature.