Observation of strontium segregation in LaAlO${}_3$/SrTiO${}_3$ and NdGaO${}_3$/SrTiO${}_3$ oxide heterostructures by X-ray photoemission spectroscopy

Uwe Treske, Nadine Heming, Stefan Krause +6

LaAlO${}_3$ and NdGaO${}_3$ thin films of different thickness have been grown by pulsed laser deposition on TiO${}_2$-terminated SrTiO${}_3$ single crystals and investigated by soft…