Guidelines for the optimization of hafnia-based ferroelectrics through superlattice engineering

[2507.05174] Guidelines for the optimization of hafnia-based ferroelectrics through superlattice engineering Skip to main content Search Submit Donate Log in Search arXiv Press Enter to search · Advanced search Condensed Matter > Materials Science arXiv:2507.05174 (cond-mat) [Submitted on 7 Jul 2025] Title: Guidelines for the optimization of hafnia-based ferroelectrics through superlattice engineering Authors: Johanna van Gent , Binayak Mukherjee , Ewout van der Veer , Ellen M. Kiens , Gertjan G. Koster , Bart J. Kooi , Jorge Íñiguez-González , Beatriz Noheda View a PDF of the paper titled Guidelines for the optimization of hafnia-based ferroelectrics through superlattice engineering, by Johanna van Gent and 7 other authors View PDF HTML (experimental) Abstract: Hafnia-based ferroelectrics are revolutionizing the data storage industry and the field of ferroelectrics, with improved materials and devices being reported monthly. However, full understanding and control has not been reached yet and the ideal material still needs to be found. Here we report ferroelectric hafnia-zirconia superlattices made out of zirconium-substituted hafnia (Hf$_{1-x}$Zr$_x$O$_2$) sublayers of varying stoichiometries alternating with pure ZrO$_2$ sublayers. It is observed that the ZrO$_2$ layers in these superlattices act as a booster for the total remnant polarization (P$_r$). By combining the benefits of the ZrO$_2$ layers and the added interfaces, which help prevent breakdown, we fabricate superlattices with a total 87.5% ZrO$_2$ content, exhibiting record polarizations with a 2P$_r$ value of 84 $\mu$C/cm$^2$ that can be cycled 10$^9$ times, while maintaining a 2P$_r$ > 20 $\mu$C/cm$^2$. Next to these attractive properties, substitution of HfO$_2$ by the much more abundant ZrO$_2$ offers a significant step towards the sustainable application of these devices. Subjects: Materials Science (cond-mat.mtrl-sci) Cite as: arXiv:2507.05174 [cond-mat.mtrl-sci] (or arXiv:2507.05174v1 [cond-mat.mtrl-sci] for this version) https://doi.org/10.48550/arXiv.2507.05174 Focus to learn more arXiv-issued DOI via DataCite Related DOI : https://doi.org/10.1021/acsaelm.5c01966 Focus to learn more DOI(s) linking to related resources Submission history From: Johanna Van Gent [ view email ] [v1] Mon, 7 Jul 2025 16:29:38 UTC (22,023 KB) Full-text links: Access Paper: View a PDF of the paper titled Guidelines for the optimization of hafnia-based ferroelectrics through superlattice engineering, by Johanna van Gent and 7 other authors View PDF HTML (experimental) TeX Source view license Current browse context: cond-mat.mtrl-sci < prev | next > new | recent | 2025-07 Change to browse by: cond-mat References & Citations NASA ADS Google Scholar Semantic Scholar export BibTeX citation Loading... BibTeX formatted citation × loading... Data provided by: Bookmark Bibliographic Tools Bibliographic and Citation Tools Bibliographic Explorer Toggle Bibliographic Explorer ( What is the Explorer? ) Connected Papers Toggle Connected Papers ( What is Connected Papers? ) Litmaps Toggle Litmaps ( What is Litmaps? ) scite.ai Toggle scite Smart Citations ( What are Smart Citations? ) Code, Data, Media Code, Data and Media Associated with this Article alphaXiv Toggle alphaXiv ( What is alphaXiv? ) Links to Code Toggle CatalyzeX Code Finder for Papers ( What is CatalyzeX? ) DagsHub Toggle DagsHub ( What is DagsHub? ) GotitPub Toggle Gotit.pub ( What is GotitPub? ) Huggingface Toggle Hugging Face ( What is Huggingface? ) ScienceCast Toggle ScienceCast ( What is ScienceCast? ) Demos Demos Replicate Toggle Replicate ( What is Replicate? ) Spaces Toggle Hugging Face Spaces ( What is Spaces? ) Spaces Toggle TXYZ.AI ( What is TXYZ.AI? ) Related Papers Recommenders and Search Tools Link to Influence Flower Influence Flower ( What are Influence Flowers? ) Core recommender toggle CORE Recommender ( What is CORE? ) IArxiv recommender toggle IArxiv Recommender ( What is IArxiv? ) Author Venue Institution Topic About arXivLabs arXivLabs: experimental projects with community collaborators arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website. Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them. Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs . Which authors of this paper are endorsers? | Disable MathJax ( What is MathJax? ) We gratefully acknowledge support from our major funders , member institutions , , and all contributors. About · Help · Contact · Subscribe · Copyright · Privacy · Accessibility · Operational Status (opens in new tab) Major funding support from

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