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Stability of Relaxed States of Excitons in Cesium Halides
Author(s) -
Nakaoka Y.,
Iida T.
Publication year - 1980
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.2221020209
Subject(s) - exciton , halide , cluster (spacecraft) , relaxation (psychology) , caesium , condensed matter physics , stability (learning theory) , physics , particle (ecology) , electron , crystal (programming language) , phonon , atomic physics , chemistry , molecular physics , quantum mechanics , inorganic chemistry , psychology , computer science , nuclear physics , programming language , oceanography , machine learning , geology , social psychology
Stability of relaxed excitons in CsCl‐type cesium halides, which are described by a cluster model already developed in a previous paper, is studied. The particle (electron or hole)–phonon interaction is used, in which the discreteness of crystal is emphasized. By a semi‐empirical method based on the Landau‐Pekar theory, the relaxation energies are calculated for one‐particle states as well as exciton states. The results are consistent with those obtained experimentally.