Observation of high ferromagnetic ordering in Fe implanted ZnO at room temperature

Room temperature ferromagnetic ordering has been observed in ZnO by implanting 1.63 MeV 56Fe6+ ions. The total number of implanted Fe ions in ZnO is 1 × 1016, which is effectively 1 at.% doping of Fe in ZnO. The amount of saturation magnetic moment in Fe implanted ZnO, annealed to 500 °C, has been found to be two orders of magnitude more than that observed earlier in chemically prepared Zn0.98Mn0.02O and Zn0.96Mn0.02Fe0.02O samples.