2018/06/30 by Taimur Ahmed, Ahmed, Taimur, Sumeet Walia +15
Engineering · Materials Science · #Advanced Memory and Neural Computing #Electronic and Structural Properties of Oxides #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #Transition Metal Oxide Nanomaterials
paper · pdf · doi:10.48550/arxiv.1807.00185
openalex publication_date 2018/06/30 · openalex created_date 2018/07/10 · openalex updated_date 2026/07/28
Functional oxides based resistive memories are recognized as potential candidate for the next-generation high density data storage and neuromorphic applications. Fundamental understanding of the compositional changes in the functional oxides is required to tune the resistive switching characteristics for enhanced memory performance. Herein, we present the micro/nano-structural and compositional changes induced in a resistive oxide memory during resistive switching. Oxygen deficient amorphous chromium doped strontium titanate (Cr:a-SrTiO3-x) based resistance change memories are fabricated in a Ti/Cr:a-SrTiO3-x heterostructure and subjected to different biasing conditions to set memory states. Transmission electron microscope based cross-sectional analyses of the memory devices in different memory states shows that the micro/nano-structural changes in amorphous complex oxide and associated redox processes define the resistive switching behavior. These experimental results provide insights and supporting material for Ref. [1].