Study on the polarization effect by Ce doping in MnSb alloy

Using discrete variationalX _α method within the local-density-functional theory and cluster models, the electronic structure and magnetic property of MnSb(Ce) are investigated. It is found that Sb-5p state is much polarized by Ce doping. The spin moment of Sb changes from −0.06μ _s in MnSb to −0.32μ _s in Mnsb(Ce). The interaction between Mn and doped Ce is small compared with that between Sb and Ce in MnSb(Ce). The influence to the magneto-optical property of MnSb by the doped Ce is discussed. It is expected that the Sb-5p polarization caused by Ce will make MnSb(Ce) a promising magneto-optical material. Supported by the National Natural Science Foundation of China Zhang Long: born in Nov. 1972, Master