Correlation between oxygen excess density and critical transition temperature in superconducting Bi-2201, Bi-2212 and Bi-2223

Correlation between oxygen excess density and critical transition temperature in superconducting Bi-2201, Bi-2212 and Bi-2223

It is suggested that oxygen excess in undoped material of the high temperature superconducting bismuth family creates periodic two-dimensional Cu 3 + -ion patches in the copper–oxygen planes. These nanostructures have a size of 3.6 nm square and show a strong linear relationship to their critical tr...

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Veröffentlicht in:Acta astronautica 2008-12, Vol.63 (11), p.1372-1375
Hauptverfasser: Roeser, H.P., Hetfleisch, F., Huber, F.M., von Schoenermark, M.F., Stepper, M., Moritz, A., Nikoghosyan, A.S.
Format: Artikel
Sprache:eng
Schlagworte:
Bismuth
BISMUTH OXIDE
COMPOSITES
COPPER OXIDE
DENSITY
High temperature superconductor
Layered cuprate
MICROSTRUCTURES
Nanocomposites
Nanomaterials
Nanostructure
Nanostructures
OXYGEN
SUPERCONDUCTIVITY
SUPERCONDUCTORS
TRANSITION TEMPERATURE
Two dimensional
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Beschreibung
Zusammenfassung:It is suggested that oxygen excess in undoped material of the high temperature superconducting bismuth family creates periodic two-dimensional Cu 3 + -ion patches in the copper–oxygen planes. These nanostructures have a size of 3.6 nm square and show a strong linear relationship to their critical transition temperatures T c .
ISSN:0094-5765
1879-2030
DOI:10.1016/j.actaastro.2008.06.001