title: Ionic conduction in the SrTiO3|YSZ|SrTiO3 heterostructure.
abstract: Employing previously published experimental data, we analyse the enhanced conductivity of the heterostructure comprising yttria-stabilised zirconia (YSZ) and SrTiO3. We confirm that the heterostructure's conductivity arises from SrTiO3, and we conclude that it is exclusively ionic below T ∼ 540 K. The calculated excess conductance from space-charge layers is found to be negligible.
authors: Institute of Physical Chemistry, RWTH Aachen University and JARA-FIT, D-52056 Aachen, Germany. desouza@pc.rwth-aachen.de
authors: R A
authors: RA
authors: De Souza
authors: A H H
authors: AH
authors: Ramadan