Evolution of magnetic order in the system LaNi1-MnO3 (x < 0.10)

Magnetic susceptibility measurements on dilute solid-solutions LaNi1-x Mn x O3 (x < 0.1) have been carried out. With increasing x the magnetic susceptibility behaviour changes from Pauli paramagnetic to Curie-Weiss type. The temperature coefficient of resistance (TCR) changes sign around x = 0.03 but the system seems to be metallic in terms of showing a finite extrapolated conductivity at 0 K even when x = 0.10. The x = 0.10 system shows indications of spin-glass like behaviour.