Improvement of Tc, Unit Cell Volume, and Meissner Effect in High-Temperature SuperconductorsAbdeljabar Aboulkassim, Said Kririm, El Hanafi Arjdal, Rachid Oualaid, Youssef El Bid and Kamal BoujaghamaE3S Web Conf., 726 (2026) 01033DOI: https://doi.org/10.1051/e3sconf/202672601033