Spectroscopy of low-phonon-energy Er:La2O2S oxysulfideMarine Poitou, Simone Normani, Pavel Loiko, Alain Braud, Patrice Camy and Odile Merdrignac-ConanecEPJ Web Conf., 335 (2025) 08021DOI: https://doi.org/10.1051/epjconf/202533508021
