Abstract
A series of diluted magnetic semiconductors, (In <sub>0.52</sub> Al <sub>0.48</sub> ) <sub>1-x</sub> Mn <sub>x</sub> As (0< x≤0.11), was successfully grown on InP substrate by low-temperature molecular beam epitaxy. Our results indicate that (In <sub>0.52</sub> Al <sub>0.48</sub> ) <sub>1-x</sub> Mn <sub>x</sub> As exhibits interesting magnetic behaviours at 5 K: it shows paramagnetic-like behaviour when x≤0.05 and ferromagnetic behaviour when x≥0.06.