In Sm_2Fe_17-_x.Mx(M=Al, Ga), there was observed a kind of spin-reorientation with temperature. and in (Sm1_-xTm_x)_2Fe_14Al_3, the anisotropy field HA increase
Fe-MnO catalyst supported on alkali modified Si-2 zeolite is a propercatalyst for the production of light olefins from syngas.The MnO Promoter canimprove the di