Curvilinear multiferroics
This project aims to develop curvilinear multiferroics by using geometric curvature to create new materials for energy-efficient computing, enhancing memory and logic devices beyond current technologies.
Projectdetails
Introduction
Disruptive development of brain-inspired computing, machine learning, and deep neural networks for electronic assistants in smartphones, autonomous driving systems, or ChatGPT requires new logic and storage concepts, which are beyond conventional von Neumann computer architectures.
Key Enablers
Materials known as multiferroics are identified as key enablers of these technologies. In contrast to ferromagnets, where the magnetic state is controlled by magnetic fields (energy inefficient due to flowing currents), magnetoelectric multiferroics allow manipulation of magnetic states by electric fields.
Challenges with Current Materials
The great promise of multiferroic materials towards energy-efficient computing is compromised by the limited material portfolio. Literally, after decades of research, we have only one multiferroic (i.e., BiFeO3) potentially promising for room temperature spintronic devices. Even this most advanced material meets challenges outperforming state-of-the-art CMOS elements.
Mainstream Approaches
The mainstream approach to design magnetoelectrics is to induce ferroelectric ordering in magnets to control non-volatile magnetic states electrically. Although intuitively understandable, this concept has failed to provide a technologically relevant multiferroic.
Proposed Paradigm Shift
Here, we propose a paradigm shift in the design of multiferroic materials. Instead of trying to induce ferroelectricity, we will realize curvilinear multiferroics by imposing ferrotoroidal order in geometrically curved magnetic thin films.
Predictions and Implications
Fundamentally, we predict that effects of geometric curvature and inhomogeneous mechanical strain will induce a sizeable ferrotoroidal order parameter in any magnetically ordered material, rendering this material multiferroic. Hence, curvilinear systems will turn rare ferrotoroidic materials into a broadly populated material class, available for material science and technologies similar to conventional ferromagnets.
Project Goals
This project will enable curvilinear multiferroics and validate their application potential for memory and logic devices.
Financiële details & Tijdlijn
Financiële details
Subsidiebedrag | € 2.500.000 |
Totale projectbegroting | € 2.500.000 |
Tijdlijn
Startdatum | 1-8-2024 |
Einddatum | 31-7-2029 |
Subsidiejaar | 2024 |
Partners & Locaties
Projectpartners
- HELMHOLTZ-ZENTRUM DRESDEN-ROSSENDORF EVpenvoerder
Land(en)
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