Article ID Journal Published Year Pages File Type
1461646 Ceramics International 2013 5 Pages PDF
Abstract

A site doped Rh perovskites with general formula La0.75A0.25Rh0.7Cu0.3O3 and La0.75A0.25Rh0.5Cu0.5O3 (A=Ca2+, Sr2+, Pb2+and Bi3+) were synthesized by solid-state methods and their crystallographic, magnetic, and electric properties investigated. Doping by divalent cations resulted in much lower cell volumes and octahedral distortions than doping with a trivalent oxide. The Pb2+ and Bi3+ (6s2) doped oxides exhibited the lowest magnetic moments and the highest activation energies. Magnetization curves are indicative of antiferromagnetic behavior. The addition of Ca2+, Sr2+, Pb2+and Bi3+cations to the A-site decreases the conductivity.

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Physical Sciences and Engineering Materials Science Ceramics and Composites
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