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Binding Energies of Neutral Bound Excitons for Intermediate to High Magnetic Fields
Author(s) -
Dujardin F.,
Stébé B.,
Munschy G.
Publication year - 1988
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.2221500123
Subject(s) - exciton , magnetic field , adiabatic process , physics , coulomb , adiabatic theorem , atomic physics , ground state , binding energy , condensed matter physics , acceptor , bound state , effective mass (spring–mass system) , variational method , impurity , electron , quantum mechanics
The influence of an external constant magnetic field on the ground state energy of an exciton bound to a neutral shallow acceptor impurity is studied in the effective mass approximation using a variational non‐adiabatic method well‐adapted for intermediate to high magnetic field values. It is shown that the magnetic field enhances significantly the Coulomb interaction for any value of the electron‐to‐hole effective mass ratio. The results permit to discuss the validity of those ones previously obtained in the low and high field limits using respectively perturbation and adiabatic variational methods. They allow the estimation of the transition energy between a neutral acceptor A 0 and an (A 0 , X)‐complex knowing the fundamental exciton transition energy in a magnetic field.