LOW-T-C MAGNETICALLY ORDERED PHASE OF SRRUO3

Magnetic susceptibility and electrical resistivity studies on polycrys talline SrRuO3 synthesized at 900 degrees C and annealed at various te mperatures in the range 950-1300 degrees C show the existence of two d ifferent phases of the compound, a phase with T-c=141 K formed below 1 100 degrees C and a second and normal phase having T-c=160 K obtained at higher processing temperatures (> 1100 degrees C), Both the phases have orthorhombic crystal symmetry with a marginal difference in their lattice parameters as evidenced from powder x-ray-diffraction measure ments.