Ferromagnetic InMnAs has been prepared by Mn ion implantation and pulsed
laser annealing. The InMnAs layer reveals a saturated magnetization of 2.6
mu_B/Mn at 5 K and a perpendicular magnetic anisotropy. The Curie temperature
is determined to be 46 K, which is higher than those in previous reports with
similar Mn concentrations. Ferromagnetism is further evidenced by the large
magnetic circular dichroism.Comment: 9 pages, 3 figure
