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Cited by 2,366

The DOI matches its Crossref record; 5 of the 5 references it cites were found in a registry or an index.

Theory of the Contribution of Excitons to the Complex Dielectric Constant of Crystals

Hopfield, J. J.·1958·Physical Review
DOI 10.1103/physrev.112.1555
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Abstract

It is shown that the ordinary semiclassical theory of the absorption of light by exciton states is not completely satisfactory (in contrast to the case of absorption due to interband transitions). A more complete theory is developed. It is shown that excitons are approximate bosons, and, in interaction with the electromagnetic field, the exciton field plays the role of the classical polarization field. The eigenstates of the system of crystal and radiation field are mixtures of photons and excitons. The ordinary one-quantum optical lifetime of an excitation is infinite. Absorption occurs only when "three-body" processes are introduced. The theory includes "local field" effects, leading to the Lorentz local field correction when it is applicable. A Smakula equation for the oscillator strength in terms of the integrated absorption constant is derived.

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Metadata

Authors
Hopfield, J. J.
Venue
Physical Review
Publisher
American Physical Society (APS)
Published
1958-12-01
Volume
112
Issue
5
Pages
1555-1567
ISSN
0031-899X (ISSN-L)
DOI
10.1103/physrev.112.1555
OpenAlex
W2041921807
Cited by
2,366
References
5
FWCI
2.75
Type
journal article
Language
en
Open access
closed

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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