Ionic conduction in the SrTiO sub(3)|YSZ|SrTiO sub(3) heterostructure

Ionic conduction in the SrTiO sub(3)|YSZ|SrTiO sub(3) heterostructure

Employing previously published experimental data, we analyse the enhanced conductivity of the heterostructure comprising yttria-stabilised zirconia (YSZ) and SrTiO sub(3). We confirm that the heterostructure's conductivity arises from SrTiO sub(3), and we conclude that it is exclusively ionic b...

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Veröffentlicht in:Physical chemistry chemical physics : PCCP 2013-03, Vol.15 (13), p.4505-4509
Hauptverfasser: De Souza, RA, Ramadan, AHH
Format: Artikel
Sprache:eng
Schlagworte:
Conductance
Heterostructures
Mathematical analysis
Physical chemistry
Strontium titanates
Yttria stabilized zirconia
Zirconium dioxide
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Zusammenfassung:Employing previously published experimental data, we analyse the enhanced conductivity of the heterostructure comprising yttria-stabilised zirconia (YSZ) and SrTiO sub(3). We confirm that the heterostructure's conductivity arises from SrTiO sub(3), and we conclude that it is exclusively ionic below T similar to 540 K. The calculated excess conductance from space-charge layers is found to be negligible.
ISSN:1463-9076
1463-9084
DOI:10.1039/c3cp44399j