An electrical conductivity relaxation study of La0.6Sr0.4Fe0.8Co0.2O3−
2003; Elsevier BV; Volume: 156; Issue: 1-2 Linguagem: Inglês
10.1016/s0167-2738(02)00178-9
ISSN1872-7689
AutoresSiqi Wang, P.A.W. van der Heide, C. Chavez, Allan J. Jacobson, Stuart B. Adler,
Tópico(s)Magnetic and transport properties of perovskites and related materials
ResumoElectrical conductivity relaxation (ECR) experiments were carried out on La0.6Sr0.4Fe0.8Co0.2O3−δ (LSFCO) in the temperature range of 840 to 910 °C and in the oxygen partial pressure range of 0.01 to 0.05 atm. The effects of annealing at 900 °C on the oxygen transport properties were investigated for individual samples. The values of DO2−=D̃O/ΓO and kex=kchem/ΓO agree well with the result from isotope-exchange depth profile (IEDP) experiments.
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