Study of La0.5R0.5CrO3 (R = Ca, Sr) ceramics: rietveld analysis, charge transfer mechanism, band gap energies, and optical properties for advanced multifunctional applications. - Hcini, Fakher; Kaouach, H.; Khelifi, Jabeur; Khirouni, Kamel (Journal of Materials Science: Materials in Electronics, 2025)