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Wannier‐Mott Exciton States in Two‐Layer Periodic Structures
Author(s) -
Pokatilov E. P.,
Beril S. I.,
Fomin V. M.,
Pogorilko G. A.
Publication year - 1985
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221300225
Subject(s) - exciton , condensed matter physics , physics , renormalization , action (physics) , band gap , biexciton , limiting , basis (linear algebra) , wannier function , quantum mechanics , mathematics , mechanical engineering , geometry , engineering
A theoretical research of Wannier‐Mott exciton states in two‐layers periodic structures is carried out. The potentials of the electron‐hole interaction and the self‐action are found on the basis of exact solution of the Poisson equation with account of the anisotropy of dielectric constants of these structures. It is shown that the self‐action effect influences essentially the exciton energy spectra, leading to the renormalization of the energy band gap. Analytical results are obtained for the limiting case of thin‐layer period structures.