Institute of Electrical and Electronics Engineers (IEEE)
,  pages 84-88

Exciton spectrum within the time-dependent density-functional theory in two models of one-dimensional periodic potential

Publication type: Proceedings Article
Publication date: 2019-06-01
Institute of Electrical and Electronics Engineers (IEEE)
Abstract
In this paper, bound excitons are studied in the frame work of the time-dependent density-functional theory (TDDFT). Two 1D systems are considered: the Kronig–Penney model and a smooth periodic potential. Within the two-band approximation, we study the dependence of the number of bound excitons on the type of exchange-correlation kernels. Two simple approximations are used: the short-ranged contact xc kernel and the long-ranged (or ‘soft-Coulomb’) one. As a result, one or two bound ecxitons are produced, depending on the system.
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Kharuk N., Zalipaev V., Gulevich D. R. Exciton spectrum within the time-dependent density-functional theory in two models of one-dimensional periodic potential // Proceedings of the International Conference on Days on Diffraction 2019, DD 2019. 2019. pp. 84-88.
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Kharuk N., Zalipaev V., Gulevich D. R. Exciton spectrum within the time-dependent density-functional theory in two models of one-dimensional periodic potential // Proceedings of the International Conference on Days on Diffraction 2019, DD 2019. 2019. pp. 84-88.
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TY - CPAPER
DO - 10.1109/DD46733.2019.9016587
UR - https://doi.org/10.1109/DD46733.2019.9016587
TI - Exciton spectrum within the time-dependent density-functional theory in two models of one-dimensional periodic potential
T2 - Proceedings of the International Conference on Days on Diffraction 2019, DD 2019
AU - Kharuk, N.V.
AU - Zalipaev, V.V
AU - Gulevich, D. R.
PY - 2019
DA - 2019/06/01
PB - Institute of Electrical and Electronics Engineers (IEEE)
SP - 84-88
ER -
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@inproceedings{2019_Kharuk,
author = {N.V. Kharuk and V.V Zalipaev and D. R. Gulevich},
title = {Exciton spectrum within the time-dependent density-functional theory in two models of one-dimensional periodic potential},
year = {2019},
pages = {84--88},
month = {jun},
publisher = {Institute of Electrical and Electronics Engineers (IEEE)}
}