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THE TWO-DIMENSIONAL MAGNETO-POLARON IN THE STRONG-COUPLING REGIME

Within the framework of the strong-coupling polaron theory the problem of a two-dimensional electron coupled to LO phonons under an external magnetic field is studied. When a suitably modified coherent phonon state interrelating the magnetic field and the polaron counterparts of the problem is adopted, it is seen that the theory reproduces the desirable asymptotic limits attained by the perturbation or the usual adiabatic theories. Moreover, the theory indicates that an abrupt 'stripping transition' in the internal structure of the magneto-polaron with varying magnetic field intensity is favoured as investigated by Wu, Peeters and Devreese (1985).