Physics – Condensed Matter – Materials Science
Scientific paper
2012-01-02
Physics
Condensed Matter
Materials Science
16 pages, 3 figures
Scientific paper
We investigate pulsed laser deposition of LaGaO3/SrTiO3 at 10-1 mbar oxygen background pressure, demonstrating the critical effect of the target-to-substrate distance, dTS, on the interface sheet resistance, Rs. The interface turns from insulating to metallic by progressively decreasing dTS. The analysis of the LaGaO3 plume evidences the important role of the plume propagation dynamics on the interface properties. These results demonstrate the growth of conducting interfaces at an oxygen pressure of 10-1 mbar, an experimental condition where a well-oxygenated heterostructures with a reduced content of oxygen defects is expected.
Amoruso Salvarore
Aruta Carmela
Ausanio Giovanni
Bruzzese Riccardo
di Uccio Umberto Scotti
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