Structure, magnetic and electrical transport properties of the perovskites Sm1−xCaxFe1−xMnxO3
Source abstract
Abstract
Abstract The structure of series Sm 1− x Ca x Fe 1− x Mn x O 3 (0.0 ≤ x ≤ 1.0) compounds was investigated. The lattice parameters increase with coupled substitution Sm 3+ by Ca 2+ and Mn 4+ for Fe 3+ . The variation of parameter, c , is larger than that of a and b , respectivly. The detailed analysis of magnetic properties of series Sm 1− x Ca x Fe 1− x Mn x O 3 (0.1 ≤ x ≤ 0.9) shows that local magnetic interaction between Fe 3+ and Fe 3+ and Mn 4+ and Mn 4+ at below magnetic transition temperature is antiferromagnetic. Above magnetic transition temperature the presence of large magnetic cluster is proposed and the sizes of magnetic clusters decrease with Mn 4+ . The electrical transport behaviors related with small polaron hopping and variable range hopping models.
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Research context
OpenAlex topics: Magnetic and transport properties of perovskites and related materials · Multiferroics and related materials · Advanced Condensed Matter Physics
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References (31)
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