The polarons and their dead layers in semi-infinite polar crystals

The united effective Hamiltonian for both the bulk and the surface polarons in semi-infinite polar crystal is deri v ed, taking account of the effects from the bulk, the surface optical phonons and the repulsive image potential from the surface. The properties of polarons are discussed. The numerica...

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Bibliographic Details
Published in:Solid state communications 1984-01, Vol.50 (6), p.505-508
Main Authors: Liang, X.X., Gu, S.W.
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electron states
Exact sciences and technology
Physics
Polarons and electron-phonon interactions
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Summary:The united effective Hamiltonian for both the bulk and the surface polarons in semi-infinite polar crystal is deri v ed, taking account of the effects from the bulk, the surface optical phonons and the repulsive image potential from the surface. The properties of polarons are discussed. The numerical evaluations for the effective potential suggest that there is a “dead layer” of polarons in polar crystal.
ISSN:0038-1098
1879-2766
DOI:10.1016/0038-1098(84)90317-X