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Title: Metallic interface in non-SrTiO{sub 3} based titanate superlattice

We report on the fabrication of all perovskite Mott insulator/band insulator YTiO{sub 3}/CaTiO{sub 3} 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-SrTiO{sub 3} based two-dimensional electron gas system has formed at the YTiO{sub 3}/CaTiO{sub 3} 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.
Authors:
; ; ; ;  [1] ;  [1] ;  [2]
  1. Department of Physics, University of Arkansas, Fayetteville, Arkansas 72701 (United States)
  2. (India)
Publication Date:
OSTI Identifier:
22486037
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 107; Journal Issue: 19; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ELECTRON DIFFRACTION; ELECTRON GAS; ENERGY BEAM DEPOSITION; FABRICATION; FILMS; INTERFACES; LASER RADIATION; LAYERS; OXIDES; PEROVSKITE; PULSED IRRADIATION; REFLECTION; REFLECTIVITY; STRONTIUM TITANATES; SUPERLATTICES; TWO-DIMENSIONAL SYSTEMS; X RADIATION; X-RAY DIFFRACTION