Strong-coupling surface polaron in a magnetic field

Details Strong-coupling surface polaron in a magnetic field Strong-coupling surface polaron in a magnetic field

2003-11-04

arxiv.org/abs/cond-mat/0311061v1

Physics

Condensed Matter

Materials Science

13 pages, 3 figures

Scientific paper

By applying variational method, the strong electron-surface optical(SO) phonon interaction and the weak electron-longitudinal optical (LO) phonon interaction are studied systematically in present paper. The formula of induced energy $V_{e-so}$, $V_{e-lo}$ in both the ground and excited states are given. The numerical results show that as the distance between the electron and the polar crystal surface increases, the electron-LO phonon interaction energy increases yet the electron-SO phonon interaction energy decreases. The numerical results also show that both electron-LO and electron-SO phonon interaction are enhanced as the magnetic field strength increases.

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