Effects of substrate temperature on the unusual non-Fermi liquid metal to insulator transition in perovskite SrIrO3 thin films

Abstract

Electronic transport has been investigated for strong spin-orbit coupled perovskite SrIrO3 thin films grown at various substrate temperatures. The electronic transport of the SrIrO3 films is found to be very sensitive to the growth parameters; in particular, the film can either be a metal or an insulator depending upon the substrate growth temperature. While all the metallic films show unusual sublinear temperature dependent non-Fermi liquid behaviors in resistivity, the insulating film grown at a higher temperature stands out for its inhomogeneous Ir distribution, as analyzed by secondary ion mass spectrometry. This observation demonstrates that the inhomogeneous distribution of cations can be one of the fundamental factors in affecting the electronic transport in heavy element based oxide films and heterostructures.

arXiv comment19 pages, 5 figures, published

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Cited by in corpus (8)

• Review of Spin Orbit Coupled Semimetal SrIrO3 in thin film form
• Growth and engineering of perovskite SrIrO3 thin films
• Novel spin-orbit coupling driven emergent states in iridate-based heterostructures
• Persistent semi-metal-like nature of epitaxial perovskite CaIrO3 thin films
• Low temperature ferromagnetism in perovskite SrIrO${}_3$ films
• Metal insulator transition and magnetotransport anomalies in perovskite SrIr0.5Ru0.5O3 thin films
• Growth facets of SrIrO3 Thin Films and Single Crystals
• Two-component anomalous Hall and Nernst effects in anisotropic Fe${}_{4-x}$Ge${}_x$N thin films