Visible light initiated and collapsed resistive switching in TbMnO3/Nb:SrTiO3 heterojunctions

Literature Information

Publication Date 2013-03-14
DOI 10.1039/C3CP00132F
Impact Factor 3.676
Authors

Yimin Cui, Wei Liu, Rongming Wang


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Abstract

Simple oxide heterostructures have been fabricated by depositing TbMnO3 thin films on Nb:SrTiO3 substrates at different temperatures. Remarkable switching with an on/off resistance ratio of ∼5000 is found in the sample grown at 720 °C, while only tiny resistive hysteresis can be observed in the sample grown at 650 °C. A jump switching in the I–V loop at the lower resistance state with negative bias is initiated by a visible light pulse in the sample grown at 650 °C, whereas a drop switching can be observed in the sample grown at 720 °C. A trapping–detrapping process along the TbMnO3/Nb:SrTiO3 interfaces is proposed to explain the anomalous photoresponse.

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Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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