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cond-mat.mtrl-sci2025
Finite-momentum dielectric function and excitonic effects from time-dependent density-functional theory with dielectrically screened hybrid functionals
Didarul Alam, Jiuyu Sun, Carsten A. Ullrich
This paper studies the performance of time-dependent density-functional theory (TDDFT) for calculating the dielectric function of semiconductors and insulators at finite momentum t…
cond-mat.mtrl-sci2025
Stability of the long-range corrected exchange-correlation functional and the Proca procedural functional in time-dependent density-functional theory
Jared R. Williams, Carsten A. Ullrich
Excitonic effects in the optical absorption spectra of solids can be described with time-dependent density-functional theory (TDDFT) in the linear-response regime, using a simple c…