Magic stability of Ga4Mg3 cluster in GaxMg3(x = 1-6) series: A density functional study

► Structure and electronic properties of GaxMg3 (x = 1-6) clusters is studied under DFT. ► A new magic cluster under Jellium stability, viz., Ga4Mg3 is identified. ► Ga4Mg3 shows possibility as building unit in forming novel semiconductor materials.