Semiconducting and Optomechanical Insights Into Rare‐Earth Copper Oxy‐Sulfates for Advanced Energy Technologies. - Hussain, Ahmad; Jabeen, Nawishta; Yaqoob, Ali; Musa, Omer; Khan, Muhammad Touqeer; Smerat, Aseel; Godavarthi, Srinivas (Advances in Condensed Matter Physics, 2026)