Abstract
Slowly cooled samples of the tetragonal superconductor LaBa1.5Ca0.5Cu3Oz show a "double plateau" in plots of Tc against z, whereas quenched samples show a linear variation. No evidence for superstructure formation is observed by electron diffraction. Unit-cell parameters a and c vary linearly with x for slowly cooled samples, but non-linearly for quenched samples. For a given z, the difference in Tc of quenched and slow-cooled samples may indicate a net transfer of charge between the Cu(2)-oxygen planes and the Cu(1)-oxygen chains which is dependent on the thermal history of the samples rather than on ordering of oxygen vacancies.
| Original language | English |
|---|---|
| Pages (from-to) | 137-142 |
| Number of pages | 6 |
| Journal | Physica C: Superconductivity and its Applications |
| Volume | 260 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - 1 Apr 1996 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering
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Cite this
Skakle, J. M. S., Templeton, A., Lachowski, E. E., & West, A. R. (1996). Double plateau Tc behaviour in the tetragonal LaBa1.5Ca0.5Cu3Oz superconductor. Physica C: Superconductivity and its Applications, 260(1-2), 137-142. https://doi.org/10.1016/0921-4534(96)00127-X