The growth of Ba/sub 1-x/K/sub x/BiO/sub 3/ superconducting single crystals with the large Meissner effect

The growth of Ba/sub 1-x/K/sub x/BiO/sub 3/ superconducting single crystals with the large Meissner effect

The growth of Ba/sub 1-x/K/sub x/BiO/sub 3/ single crystals with a large (50-70%) volume of superconducting phase measured by the Meissner effect is described. A narrow range of temperatures and solution concentrations exists to grow single crystals with a large volume of the Meissner state and a sh...

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Veröffentlicht in:IEEE transactions on applied superconductivity 1995-06, Vol.5 (2), p.1325-1327
Hauptverfasser: Anshukova, N.V., Golovashkin, A.I., Ivanova, L.I., Maljuchkov, O.T., Rusakov, A.P.
Format: Artikel
Sprache:eng
Schlagworte:
Anodes
Atmosphere
Ceramics
Crystals
Nitrogen
Platinum
Pollution measurement
Powders
Raw materials
Temperature dependence
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Zusammenfassung:The growth of Ba/sub 1-x/K/sub x/BiO/sub 3/ single crystals with a large (50-70%) volume of superconducting phase measured by the Meissner effect is described. A narrow range of temperatures and solution concentrations exists to grow single crystals with a large volume of the Meissner state and a sharp diamagnetic transition at T/spl ap/30 K. In addition the powder synthesis of Ba/sub 1-x/K/sub x/BiO/sub 3/ polycrystals with large (/spl gsim/50%) Meissner effect is described. Some of theses experimental results contradict the traditional BCS model of superconductivity.< >
ISSN:1051-8223
1558-2515
DOI:10.1109/77.402807