Metallic interface in non-SrTiO3 based titanate superlattice

Abstract

We report on the fabrication of all perovskite Mott insulator/band insulator YTiO3/CaTiO3 superlattices by pulsed laser deposition. The combination of in situ reflection high energy electron diffraction, X-ray diffraction, and X-ray reflectivity confirms the high quality of the films grown in a layer-by-layer mode. Electrical transport measurements reveal that a non-SrTiO3 based two dimensional electron gas system has formed at the YTiO3/CaTiO3 interface. These studies offer another route in the pursuit of complex oxide two-dimensional electron gas systems, which allows to obtain greater insights into the exotic many-body phenomena at such interfaces.

References in corpus (5)

• Polar Discontinuity Doping of the LaVO_3/SrTiO_3 Interface
• Intrinsic Mobility Limiting Mechanisms in Lanthanum-doped Strontium Titanate
• Carrier-controlled ferromagnetism in SrTiO3
• Tuning ferromagnetism at interfaces between insulating perovskite oxides
• Epitaxial growth and the magnetic properties of orthorhombic YTiO3 thin films

Cited by in corpus (3)

• Ionic modulation at the LaAlO${}_3$/KTaO${}_3$ interface for extreme high-mobility two-dimensional electron gas
• Metallic interfaces in a CaTiO${}_3$/LaTiO${}_3$ heterostructure
• Emergent antiferromagnetism of YTiO3 in YTiO3-CaTiO3 superlattices