The Dynamical Role of Optical Phonons and Sublattice Screening in a Solid-State Ion Conductor - Kim H. Pham; Vijaya Begum-Hudde; Amy K. Lin; Natan A. Spear; Jackson McClellan; Michael W. Zuerch; André Schleife; Kimberly A. See; Scott K. Cushing (Journal of the American Chemical Society, 2025)