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On the Theory of Light Absorption by Antiferrodielectrics in the Frequency Range of Double Electronic Excitations of Molecules (Ions)
Author(s) -
Petrov E. G.,
Loktev V. M.,
Gaididei Yu. B.
Publication year - 1970
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.19700410113
Subject(s) - ion , atomic physics , excitation , absorption (acoustics) , crystal (programming language) , range (aeronautics) , absorption spectroscopy , spectrum (functional analysis) , molecule , electronic structure , physics , chemistry , materials science , condensed matter physics , quantum mechanics , optics , computer science , composite material , programming language
The band and bound states of double electronic excitations of antiferrodielectrics are considered; from the equation for Green's function the excitation spectrum of an anti‐ferrodielectric under creation of two electronic excitations in a crystal is obtained. The absorption spectrum of a molecular antiferrodielectric, of solid α‐oxygen, is considered as an example in the frequency range of double electronic 1 Δ g + 1 Δ g , 1 Σ g ++ 1 Δ g , 1 Σ g ++ 1 Σ g +transitions.