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arXiv · 1511.07484

Metallic interface in non-SrTiO3 based titanate superlattice

Xiaoran Liu·D. Choudhury·Yanwei Cao·M. Kareev·S. Middey·J. Chakhalian
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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.

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Xiaoran Liu, D. Choudhury, Yanwei Cao, M. Kareev, S. Middey, J. Chakhalian. 2015-11-23. Metallic interface in non-SrTiO3 based titanate superlattice. https://doi.org/10.1063/1.4935550

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