DiMartinoLab

This is what we do @DiMartinoLab @cu_mat @Cambridge_Uni! We use #nanotechnology for a #SustainableLiving! vimeo.com/519877530

Bottom line: Local chemistry and charge state act as control knobs for defect behaviour and device performance. A microscopic picture with direct implications for ferroelectric devices.

Key idea: Zr doesn’t significantly change the energy cost of forming vacancies - it changes how many favourable sites are available. Under an electric field, vacancies can also change charge state, which opens up many more pathways for them to move.

Just published in Physical Review B! journals.aps.org/prb/pdf/10.110… We studied how oxygen vacancies form in ferroelectric Hf₁₋ₓZrₓO₂ and found that it’s not just about how much Zr you add, but where it sits locally.

I’m thrilled to share that I will join the Department of Materials @UniofOxford and @StAnnesCollege as an Associate Professor. My entire research group will also be transferring from the University of Cambridge — we are all incredibly excited! Visit: materials.ox.ac.uk/peoplepages/di…

Great food, sunny skies & even better company! DMG's summer picnic brought together our international team for a potluck feast, good chats & a celebration of our recent wins. Yes. British weather did cooperate! @Cambridge_Uni @cu_mat @DiMartinoLab #SummerPicnic #WorkCulture

Had a great time presenting at #ISMC2025 in Sofia on using light for operando nanoscale studies of energy device materials. Exciting discussions around emerging memory and computing—thanks to the organizers and all who attended! #Nanotech #EnergyMaterials #ISMC2025 #research

New paper out! We unveil operando insights into hBN memristors, revealing defect-mediated Au migration as the switching mechanism. Defect engineering is key to optimise device lifetime! Distinct behaviour vs TMDs like MoS₂. onlinelibrary.wiley.com/doi/full/10.10… #2Dmaterials #memristors

Good news! My article received enough views to be a Top Viewed Article. Read it here onlinelibrary.wiley.com/doi/full/10.10… #TopViewedArticle @wileyinresearch

The @DiMartinoLab celebrated the end of the year with a festival of lights at the Cambridge Botanic Garden. Not bad for a research group studying light! @cu_mat @Cambridge_Uni

We show operando optical evidence of Na+ motion triggering resistive switching! Our nano optical tool is crucial for understanding devices based on biocompatible materials, promising route towards emulating neuronal ion channels and biomedical applications.authors.elsevier.com/c/1k5rO8M-oq22…

In recognition of exemplary actions undertaken to improve the #Sustainability practices as part of the laboratory efficiency assessment framework (LEAF), the @DiMartinoLab is awarded the LEAF bronze certificate! @cu_mat @Cambridge_Uni

Dancing about physics... thanks, @DiMartinoLab, for the kind invitation!

It is highlighting “Resetting the drift of Oxygen Vacancies in Thin-Film HZO FE Memories by Electrical Pulse Engineering”, originally published in Small Science, 2400223 doi.org/10.1002/smsc.2…

Our paper has been highlighted in the Women in Materials Science Issue, which is collecting outstanding works created, steered, and led by women scientists, showcasing the high impact these leading individuals have within the research published with Wiley! onlinelibrary.wiley.com/doi/toc/10.100…

We envision a portable Au nanosized electrode, which provides nearly the smallest electrical contact available, while enhancing (through plasmonic effects) optical signals beneath the electrode. This enables high resolution reliable and simultaneous optical and electrical mapping

Here our latest publication where we propose a pioneering scanning plasmon-enhanced microscopy (SPEM) method to address the pressing issue of user-friendly and simultaneous electrical and optical characterization of localized phenomena in nanomaterials! pubs.acs.org/doi/10.1021/ac…

We provide compelling evidence for this being associated with effective control of vacancy migration in the film. Our real-time and in-operando technique is sensitive to migration of <1% oxygen ions in few nm and probed under ambient conditions and with single cycle resolution.

unlocking novel potential towards unparalleled performance and enhanced device lifespan. We show the ability to manipulate wake-up by a factor of ~4× to ~24×, retard rate of fatigue by 4×, and reduce leakage by ~60% and polarisation loss by 20-80%.[part2]

I am immensely happy to share our latest publication on “Resetting the drift of Oxygen Vacancies in Thin-Film HZO FE Memories by Electrical Pulse Engineering” (Small Science (2024), 2400223) onlinelibrary.wiley.com/doi/epdf/10.10…