Charge segregation in manganites with electron doping?

Abstract The charge and magnetic states of LaMnO 3 single crystal with electron doping by Ce (7%) have been studied and compared with undoped manganite and a Sr-doped compound. Extensive study including investigation of magnetic, transport properties, infrared optical absorption, electron-spin resonance, and neutron scattering have been performed. The substitution of La by donor impurity of Ce results in a partial compensation of holes induced by cation vacancies. Results are explained by charge segregation and “modulated” canted antiferromagnetic state.