Structural, elastic, electronic and optical properties of the newly synthesized selenides Tl2CdXSe4 (X = Ge, Sn)S. Karkour, A. Bouhemadou, D. Allali, K. Haddadi, S. Bin-Omran, R. Khenata, Y. Al-Douri, A. Ferhat Hamida, A. Hadi and A. F. Abd El-RehimEur. Phys. J. B, 95 3 (2022) 38DOI: https://doi.org/10.1140/epjb/s10051-022-00288-y