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A Weak‐Coupling Calculation of the Binding Energy and Effective Mass of a Polaron in a Multiple Quantum Well
Author(s) -
Lai W.,
Butcher P. N.
Publication year - 1989
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.2221540121
Subject(s) - polaron , effective mass (spring–mass system) , physics , dispersion relation , perturbation theory (quantum mechanics) , binding energy , condensed matter physics , phonon , quantum , electron , quantum well , quantum mechanics , coupling (piping) , perturbation (astronomy) , quantum electrodynamics , materials science , laser , metallurgy
The Fröhlich electron–phonon interaction in a multiple quantum well structure (MQW) is studied in a perturbation scheme. The dispersion relation of the polaron is obtained with an analytic form factor in a well and an overlap factor between wells. The polaronic binding energy and effective mass are compared with results for a single quantum well.