PROPERTIES OF THE SURFACE MAGNETOPOLARON IN POLAR CRYSTALS

There is weak bulk but strong surface coupling between the electron an d phonons for polar crystals in a magnetic field. In this paper, the i nfluences of the electron interaction with both the weak-coupling bulk longitudinal optical phonons and the strong-coupling surface optical phonons on the properties of the surface polaron in a magnetic field a re studied. The effective Hamiltonian of the surface polaron is derive d by using a linear-combination operator method. Numerical calculation s on the AgCl crystal, as an example, are performed, and some properti es of the vibration frequency and the effective interaction potential of the surface polaron in a magnetic field are discussed.