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Vol 15, Issue 1, 2025
Pages: -
Abstract
Nonmetallic materials
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Abstract Nonmetallic materials

EXCITON DISPERSION LAW IN CRYSTALLINE SUPERLATTICES

By
Jovan Šetrajčić Orcid logo ,
Jovan Šetrajčić
Contact Jovan Šetrajčić

Academy of Sciences and Arts of the Republic of Srpska , Banja Luka , Bosnia and Herzegovina

Siniša Vučenović ,
Siniša Vučenović

University of Banja Luka, Faculty of Natural Sciences and Mathematics , Banja Luka , Bosnia and Herzegovina

Matilda Vojnović
Matilda Vojnović

University of Novi Sad, Faculty of Medicine, University of Novi Sad, Faculty of Medicine , Novi Sad , Serbia

Abstract

In this paper, we studied the superlattice model, as a special class of materials in which the "nodes" of the crystal lattice are made up of interconnected thin films with a certain regular and periodic arrangement. We have theoretically determined the energy spectra that exciton quasiparticles can have in these structures. The number of film layers that make up the basic periodically repeating motifs within the superlattice, as well as the ratio of exciton energy transfer within each motif (film) and exciton energy transfer between neighboring motifs proved to be important parameters that influence the behavior of the calculated quantities in the external electromagnetic field.

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