Physcial Properties of SuperconductorNo Access
STUDY OF INVARIANT Tc IN HIGHER DOPING LEVEL Y1-xCaxBa2-xLaxCu3Oy
https://doi.org/10.1142/S0217979205028463Cited by:1 (Source: Crossref)
Abstract
The higher doping level Y1-xCaxBa2-xLaxCu3Oy samples were synthesized with x from 0.25 to 0.55. Structure and superconductivity have been investigated. Comparing with the results of lower doping level, the Tc of these samples keeps almost constant when dopant increasing. While some structural characters, such as Cu(1)-O(4), Cu(2)-O(4) bond lengths change randomly in a narrow range. The relationship between Ba/La position and Tc is rather interesting. The results give another evidence that the influence of structural change on superconductivity is independent of carrier concentration.
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