On the Theory of Light Absorption by Antiferrodielectrics in the Frequency Range of Double Electronic Excitations of Molecules (Ions)

Abstract

AbstractThe 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 1Δg + 1Δg, 1Σ + 1Δg, 1Σ + 1Σ transitions.