[摘要]：The compound FeMnP0.5Si0.5 has been studied by magnetic measurements, Mossbauer spectroscopy, and electronic structure and total energy calculations. An unexpectedly high magnetic hyperfine field for Fe atoms located at the tetrahedral Me(1) site in the Fe2P structure is found, The saturation moment derived from magnetic measurements corresponds to 4.4 mu(B)/f.u. at low temperatures, a value substantially higher than previously reported, but in accordance with the results from our electron structure calculations, This high saturation moment and the tunable first order ferromagnetic transition make the Fe2-xMnxP1-ySiy, system promising for magnetocaloric applications. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3651272]
