Crystallographic, Magnetic, and Electrical Properties of SrTi1-xRuxO3 Perovskite Solid Solutions

✍ Scribed by S.L. Cuffini; V.A. Macagno; R.E. Carbonio; A. Melo; E. Trollund; J.L. Gautier

• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 532 KB
• Volume: 105
• Category: Article
• ISSN: 0022-4596
• DOI: 10.1006/jssc.1993.1204

✦ Synopsis

The perovskite compounds (\mathrm{SrTiO}{3}) (semiconductor, cubic, and diamagnetic) and (\mathrm{SrRuO}{3}) (metallic conductor, orthorhombic, and ferromagnetic) form a continuous series of solid solutions of the formula (\mathrm{SrTi}{1-x} \mathrm{Ru}{x} \mathrm{O}_{3}). Increasing substitution of titanium by ruthenium 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 obeyed the Curie-Weiss law, with the Weiss constant ((\theta)) and Curie constant ((\mathrm{Cm})) decreasing as (x) decreased. 1993 Academic Press, Inc.