Crystallographic, magnetic and electrical properties of solid solutions SrTi1-xRuxO3 perovskite solid solutions

S.L. CUFFINI; V.A. MACAGNO; R.E. CARBONIO; A. MELO; E. TROLLUND; J.L. GAUTIER

ACADEMIC PRESS INC ELSEVIER SCIENCE

Año: 1993 vol. 105 p. 161 - 161

p>The perovskite compounds SrTiO3 (semiconductor, cubic and diamagnetic) and SrRuO3 (metallic conductor, orthorhombic and ferromagnetic) form a continuous series of solid solutions of the formula SrTi1-xRuxO3. Increasing substitution of titanium by tuthenium led to a change in the crystallographic, magnetic and electrical properties. As x increased the latter properties changed from semiconductor to metallic at x values between 0.40 and 0.50. A change from cubic to orthorhombic structure was also observed in the same compositional range as the Ru content increased. The compounds with x= 1.00, 0.80, 0.50 and 0.33 obey the Curie-Weiss law, with the Weiss constant (theta) and Curie constant (Cm) decreasing as x decreased.