Ferromagnetic formation of two phases due to MnP and InMn_3 from InMnP:Zn implanted with Mn (10 at.%)

摘要

InMnP:Zn samples implanted with Mn (10 at. %) were annealed at 350℃ for 60 s and at 450℃ for 30 s. Using transmittance electron microscopy, both single crystalline and polycrystalline structures containing MnP and InMn_3 sized ～20 nm were observed depending on the annealing condition. These samples exhibited two different Curie temperatures: T_(C1) at 291 K and another well above 291 K. The high temperature-ferromagnetic behavior up to T_(C1) and above T_(C2) is believed to have originated from two magnetic MnP and InMn_3 phases, respectively.