Polaronic transport in the ferromagnetic phase of Gd1−xCaxBaCo2O5.53

@article{Thirumurugan2011PolaronicTI,
  title={Polaronic transport in the ferromagnetic phase of Gd1−xCaxBaCo2O5.53},
  author={N. Thirumurugan and C. S. Sundar and Arvind Krishnasamy Bharathi},
  journal={Solid State Communications},
  year={2011},
  volume={151},
  pages={1511-1514}
}
Abstract Temperature dependent electrical resistivity and thermopower measurements were carried out on Gd 1− x Ca x BaCo 2 O 5.53 with x varying between 0 and 0.25. Ca substitution leads to the incorporation of holes (Co 4+ ) into the system that leads to a reduction in resistivity and a stabilisation of the ferromagnetic phase at low temperatures. The temperature dependence of resistivity and thermopower are markedly different in the Ca doped sample, with a dramatic reduction in the… Expand
Magnetisation studies of phase co-existence in Gd1 − xCaxBaCo2O5.5
Abstract Magnetic properties of hole doped, oxygen deficient double perovskite compounds, Gd1 − xCaxBaCo2O5.5, have been investigated. Ferromagnetic transition temperatures increase and theExpand
Tunable resistivity in magnetic glass phase of Gd(1-x)Ca(x)BaCo2O5.5.
We present magnetization and resistance measurements carried out on pristine and Ca-doped Gd(1-x)Ca(x)BaCo2O5.5 (x = 0.02) samples using the cooling and heating in unequal field (CHUF) protocol. TheExpand
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Chapter 1 Phase transitions in double perovskite GdBaCo 2 O 5
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For practical applications, the stability of perovskite-like oxides in various environments should be evaluated. In this work, samples of Gd0.8Ca0.2BaCo2O5+δ (GCBC2)were annealed in differentExpand
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