Structural properties of BaPb1-xBixO3 nanostructures
DOI:
https://doi.org/10.56053/3.3.245Keywords:
Nanostructure, XRD, SuperconductivityAbstract
Electrical resistance as a function of temperature, R(T), and X-ray powder diffractometry (XRD) patterns are reported for polycrystalline samples of the BaPb1-xBixO3 system. R(T) measurements conducted with single phase samples show metal-like behavior for BaPbO3, superconductivity in the 0.005 < x < 0.30 range, and a insulating regime for x > 0.30. A careful analysis of the onset of the critical temperature (TC) revels dependence on sample composition for 0.005 < x < 0.30. We argue that the composition-dependence of TC is related to the superconducting volume fraction which ultimately leads to connected or disconnected superconducting clusters, similar to granular superconductors
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