Magnetism and transport of Ln0.5Sr0.5CoO3 (Ln = Pr, Nd, Sm and Eu)
Source abstract
Abstract
Abstract Magnetism and transport have been investigated for perovskite cobalt oxides Ln 0.5 Sr 0.5 CoO 3 ( Ln = Pr, Nd, Sm and Eu). The crystal structures are monoclinic ( P2 1 /n ) for Pr 0.5 Sr 0.5 CoO 3 , orthorhombic ( Pnma ) for Nd 0.5 Sr 0.5 CoO 3 and Sm 0.5 Sr 0.5 CoO 3 , and cubic ( Pm 3 m ) for Eu 0.5 Sr 0.5 CoO 3. DC magnetization measurements showed ferromagnetic transitions with Curie temperatures ( T C ) between 233 and 155 K. Metallic behavior was observed in resistivity-temperature curves below 300 K. This is an entirely different property from that of Ln 0.5 Ba 0.5 CoO 3 , which may be qualitatively explained in connection with the crystal structures.
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Research context
OpenAlex topics: Magnetic and transport properties of perovskites and related materials · Advanced Condensed Matter Physics · Thermal Expansion and Ionic Conductivity
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