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Oxygen partial pressure effect on the thermal stability of Nd-123 superconductor thin films
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10.1063/1.3618675
/content/aip/journal/jap/110/4/10.1063/1.3618675
http://aip.metastore.ingenta.com/content/aip/journal/jap/110/4/10.1063/1.3618675

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Optical micrographs showing the melting processes of Nd-123 films (a)-(c) under P(O2) = 1% at 997 °C, 1070 °C, and 1132 °C, respectively; (d)-(f) under P(O2) = 21% at 1060 °C, 1106 °C, and 1147 °C, respectively; and (g)-(i) under P(O2) = 100% at 1101 °C, 1142 °C, and 1174 °C, respectively.

Image of FIG. 2.
FIG. 2.

(Color online) A schematic illustration of the solute concentration at the melting front and the growth front.

Image of FIG. 3.
FIG. 3.

(Color online) Liquidus of RE elements in the Ba3Cu5O melt under various atmospheres. The dashed-dotted curves were plotted using the classical Freundlich model, corresponding to the RE concentration at the melting front. The others are from experimental results (Ref. 21).

Image of FIG. 4.
FIG. 4.

(Color online) The super-saturation (σ) of the RE element driving the Nd-422 growth under different atmospheres.

Image of FIG. 5.
FIG. 5.

(Color online) δ as a function of ΔT showing that δ for Nd-123 increases with increasing oxygen partial pressure.

Tables

Generic image for table
Table I.

The different thermal stabilities of Nd-123 films investigated via in situ microscopy.

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/content/aip/journal/jap/110/4/10.1063/1.3618675
2011-08-24
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Oxygen partial pressure effect on the thermal stability of Nd-123 superconductor thin films
http://aip.metastore.ingenta.com/content/aip/journal/jap/110/4/10.1063/1.3618675
10.1063/1.3618675
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