The influence of ytterbium on the optical properties of epitaxial films of GaAs and AlXGa1-XAs. Eurasian Journal of Physics,Chemistry and Mathematics, [S. l.], v. 51, p. 1–4, 2026. Disponível em: https://geniusjournals.org/index.php/ejpcm/article/view/7250. Acesso em: 30 jan. 2026.