Did you miss the opportunity to follow our researchers on April 27? Don’t worry, the webinar has been recorded!

Take your time to watch the video and discover INTERSECT project’s main challenges and aims and its final product: the IM2D tool box for Disruptive Electronics.

After a brief introduction by the project coordinator Dr. Arrigo Calzolari you will learn which are the challenges faced by our researchers and the solutions they implemented.

You will also discover the IM2D platform main features through real application cases. This integrated, standardized, interoperable software solution conceived to sustain the material-aware simulation of semiconductor devices and accelerate your technology development.

If you consider becoming a user of this innovative platform please contact us! We will be glad to share our expertise with you!

More info on IM2D are available in the dedicated webpage.

Dr. Francesco Tavanti (CNR Nano and INTERSECT researcher) will explain the results obtained during his last researches to all the interested colleagues, students and project partners.

Don’t miss this oppportunity!

Wednesday May 05, 2022 at 15.00 CET – online

Link: https://meet.goto.com/153432757

Abstract:

Amorphous chalcogenides, such as Ge_xSe_1-x, have been proposed as good ovonic switch material candidates for nonvolatile memory and selector devices due to their fast switching, endurance and higher crystallization temperature with respect to standard GST compounds. The structural and electrical properties of Ge_xSe_1-x, as for other chalcogenides, are strongly related to the presence of short- and medium-range structures in the amorphous phase that are responsible for the internal structural orders at different length-scales^1,2. In order to deeply understand the local geometry-dependent properties of these chalcogenides systems, we employed a combined approach based on both classical molecular dynamics (MD) simulations, innovative analysis techniques³ and ab-initio simulations.

We obtained different information about the nature of the order in these amorphous systems demonstrating that little changes in the stoichiometry greatly affect the Ge_xSe_1-x structural and electrical properties and that short- and medium-range order are intrinsically interconnected each other.

The seminar is realized in the framework of the funded project “INTERSECT”  H2020 Grant n. 814487″.

References:

Chai, Z. et al. Dependence of switching probability on operation conditions in GexSe1-x ovonic threshold switching selectors. IEEE Electron Device Letters (2019) doi:10.1109/led.2019.2924270.

Dianat, B., Tavanti, F., Padovani, A., Larcher, L. & Calzolari, A. BELLO: A post-processing tool for the local-order analysis of disordered systems. Computational Materials Science 209, 111381 (2022).

Specific advancements have been made in INTERSECT with the acquisition of the required data for the various simulation steps, so that our automated infrastructure is able to handle, store, and share data, which is the core of the IM2D data hub (D2.6 Pipelines to/from external repositories).

Further advancements have been made also by implementing and integrating the European Materials Modeling Ontology (EMMO)-based semantic model in the developed INTERSECT IM2D automated workflows and Graphical User Interface, and by developing a specific extension of the OSP-core (AiiDA-wrapper) for SimPhoNy, which provides a flexible interface for the implemented ontologies (D2.5 Semantic interoperability of the automated workflows through SimPhoNy).

The previous INTERSECT-driven ontology has been actually updated to the latest EMMO version (D1.3 Report on INTERSECT developed ontologies and MODA), and our examples of user stories for both the Material-to-Device and the Device-to-Material workflows have been also improved (D1.1 Report on use cases and system requirements). 

Finally, we have worked on our Innovation Management process, and defined further key exploitable results together with the final IM2D product (D4.8 Innovation management assessment and revision). As a consequence, our INTERSECT business plan has been updated (D4.7 Business plan assessment and revision), and it’s now ready to be used beyond the project lifetime!

Check the whole list of our new project deliverables »

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