Phonon softening and strong-coupling superconductivity in metastable Sb0.83Au0.17RemoveSouvik Banerjee, Deepak Singh, Daloo Ram, G. Sai Kedar Reddy, Subhajit Sau, V. Kanchana, G. Vaitheeswaran, and A. SundaresanPhys. Rev. B 113, 094507 (2026)