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| Naji, M. |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Ali, M. A. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Infante Ingrid, C.
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Topics
Publications (8/8 displayed)
- 2023VO2 stabilization on Si for memristor in neuromorphic computing applications
- 2023Interplay between Strain and Defects at the Interfaces of Ultra‐Thin Hf 0.5 Zr 0.5 O 2 ‐Based Ferroelectric Capacitorscitations
- 2023Thermal information processing using phase change materials
- 2021Electrical Characterisation of HfZrO2 Ferroelectric Tunnel Junctions for Neuromorphic Application
- 2021Développement d’un capteur environnemental ultra-basse consommation à base de SnO2 en technologie CMOS FDSOI
- 2021Structure, chemical analysis, and ferroelectric properties of chemical solution derived epitaxial PbZr$_{0.2}$Ti$_{0.8}$O$_3$ films for nanomechanical switching
- 2021Impact of a dielectric layer at TiN/HfZrO2 interface for ferroelectric tunnel junctions applications
- 2021Role of ultra-thin Ti and Al interfacial layers in HfZrO2 ferroelectric tunnel junctions
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article
Interplay between Strain and Defects at the Interfaces of Ultra‐Thin Hf 0.5 Zr 0.5 O 2 ‐Based Ferroelectric Capacitors
Abstract
afnium zirconium oxide (HZO) is an ideal candidate for the implementation of ferroelectric memristive devices, due to its compatibility with the complementary metal‐oxide‐semiconductor technology. Ferroelectricity in HZO films is significantly influenced by the properties of electrode/HZO interfaces. Here, the impact of the interfacial microstructure and chemistry on the ferroelectricity of 6 nm‐thick HZO‐based capacitors, realized by sputtering, with titanium nitride or tungsten electrode materials, is investigated. The results highlight a strong correlation between the structural properties of electrode/HZO interfaces and the HZO ferroelectric performance. Interface effects become significant at low HZO thickness, thus the precise control over the quality of electrode/HZO interfaces allows the remarkable improvement of HZO ferroelectric properties. A double remanent polarization of 40 µC cm −2 is achieved. This work is a new step towards high quality ultra‐thin HZO films with enhanced ferroelectricity for the implementation of ferroelectric tunnel junctions for brain‐inspired computing.