THE XPS STUDY OF COMPLEX OXIDES EU(0.5)RE (0.5)FE(0.5)MN(0.5)O(3)

Complex oxides replaced by rare earth ions, Eu(0.5)RE(0.5)Fe(0.5)Mn(0. 5)O(3) (RE = La, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb) were prepared by the solid state reaction method. Measurements by XRD and XPS were carried out. The study of XPS indicates that the replacement by rare e arth causes the decrease of the binding energy(B. E.) of rare earth io ns, compared to their sequioxides. And in the replaced oxides, the bin ding energy of Fe-2p3/2 and Mn-2p3/2 increases with the decrease of io n radius of RE ion. The reasons for the changes of B. E. are discussed .