Epitaxial YBa2Cu3O7-jg/Sr2RuO4 Heterostructures

The anisotropie oxide superconductors YBa2Cu3O7-jg and Sr2RuO4 have been epitaxially combined in various ways (c-axis on c-axis, c-axis on a-axis, and a-axis on a-axis) though the use of appropriate substrates. Phase-pure a-axis oriented or c-axis oriented epitaxial Sr2RuO4 films were grown by pulsed laser deposition. YBa2Cu3O7-jg films were then grown on both orientations of Sr2RuO4 films and the resulting epitaxy was characterized.