Spectromicroscopic insights for rational design of redox-based memristive devices
10.1038/ncomms9610
Crossref journal-article
Springer Science and Business Media LLC
Nature Communications (297)
Abstract

AbstractThe demand for highly scalable, low-power devices for data storage and logic operations is strongly stimulating research into resistive switching as a novel concept for future non-volatile memory devices. To meet technological requirements, it is imperative to have a set of material design rules based on fundamental material physics, but deriving such rules is proving challenging. Here, we elucidate both switching mechanism and failure mechanism in the valence-change model material SrTiO3, and on this basis we derive a design rule for failure-resistant devices. Spectromicroscopy reveals that the resistance change during device operation and failure is indeed caused by nanoscale oxygen migration resulting in localized valence changes between Ti4+ and Ti3+. While fast reoxidation typically results in retention failure in SrTiO3, local phase separation within the switching filament stabilizes the retention. Mimicking this phase separation by intentionally introducing retention-stabilization layers with slow oxygen transport improves retention times considerably.

Bibliography

Baeumer, C., Schmitz, C., Ramadan, A. H. H., Du, H., Skaja, K., Feyer, V., Müller, P., Arndt, B., Jia, C.-L., Mayer, J., De Souza, R. A., Michael Schneider, C., Waser, R., & Dittmann, R. (2015). Spectromicroscopic insights for rational design of redox-based memristive devices. Nature Communications, 6(1).

Authors 14
  1. Christoph Baeumer (first)
  2. Christoph Schmitz (additional)
  3. Amr H. H. Ramadan (additional)
  4. Hongchu Du (additional)
  5. Katharina Skaja (additional)
  6. Vitaliy Feyer (additional)
  7. Philipp Müller (additional)
  8. Benedikt Arndt (additional)
  9. Chun-Lin Jia (additional)
  10. Joachim Mayer (additional)
  11. Roger A. De Souza (additional)
  12. Claus Michael Schneider (additional)
  13. Rainer Waser (additional)
  14. Regina Dittmann (additional)
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Dates
Type When
Created 9 years, 10 months ago (Oct. 19, 2015, 6:57 a.m.)
Deposited 2 years, 7 months ago (Jan. 5, 2023, 5:36 a.m.)
Indexed 3 days, 22 hours ago (Aug. 20, 2025, 8:20 a.m.)
Issued 9 years, 10 months ago (Oct. 19, 2015)
Published 9 years, 10 months ago (Oct. 19, 2015)
Published Online 9 years, 10 months ago (Oct. 19, 2015)
Funders 0

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@article{Baeumer_2015, title={Spectromicroscopic insights for rational design of redox-based memristive devices}, volume={6}, ISSN={2041-1723}, url={http://dx.doi.org/10.1038/ncomms9610}, DOI={10.1038/ncomms9610}, number={1}, journal={Nature Communications}, publisher={Springer Science and Business Media LLC}, author={Baeumer, Christoph and Schmitz, Christoph and Ramadan, Amr H. H. and Du, Hongchu and Skaja, Katharina and Feyer, Vitaliy and Müller, Philipp and Arndt, Benedikt and Jia, Chun-Lin and Mayer, Joachim and De Souza, Roger A. and Michael Schneider, Claus and Waser, Rainer and Dittmann, Regina}, year={2015}, month=oct }