Exploring structural, electronic, magnetic, and optical response of GaN-X (X=Sr, ba, cs, mg) materials for optoelectronic applications

M. Junaid Iqbal Khan^*, Hafiza Saima Batool, Imran Taj, Abid Latif, Javed Ahmad, M. Yousef, Urva Gull, Perveen Akhtar, Juan Liu, Hira Kiran, Asif Rasheed, Sana Khalid, Hadeeqa Tehreem, Hamid Ullah