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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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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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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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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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Fina, Ignasi
Institut de Ciència de Materials de Barcelona
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (28/28 displayed)
- 2024Fundamentals of Flexoelectricity, Materials and Emerging Opportunities Toward Strain-Driven Nanocatalystscitations
- 2024Interface Engineering in All-Oxide Photovoltaic Devices Based on Photoferroelectric BiFe0.9Co0.1O3 Thin Films
- 2024Ionic control of magnetism in all-solid-state CoO x /yttria-stabilized zirconia heterostructurescitations
- 2024Ionic control of magnetism in all-solid-state CoOx/yttria-stabilized zirconia heterostructurescitations
- 2023Disentangling stress and strain effects in ferroelectric HfO2citations
- 2023Disentangling stress and strain effects in ferroelectric HfO2citations
- 2022Bendable Polycrystalline and Magnetic CoFe2O4 Membranes by Chemical Methodscitations
- 2022Ferroelectric (Hf,Zr,La)O2 filmscitations
- 2022Impact of In3+ cations on structure and electromagnetic state of M−type hexaferritescitations
- 2022Control of Layering in Aurivillius Phase Nanocomposite Thin Films and Influence on Ferromagnetism and Optical Absorptioncitations
- 2021Giant Tuning of Electronic and Thermoelectric Properties by Epitaxial Strain in p-Type Sr-Doped LaCrO 3 Transparent Thin Filmscitations
- 2021Features of structure, magnetic state and electrodynamic performance of SrFe12-xInxO19citations
- 2021Enhancement of phase stability and optoelectronic performance of BiFeO3 thin films via cation co-substitution
- 2021High-Temperature Synthesis and Dielectric Properties of LaTaON2citations
- 2021Large enhancement of ferroelectric polarization in Hf0.5Zr0.5O2 films by low plasma energy pulsed laser deposition
- 2020Engineering Polar Oxynitrides: Hexagonal Perovskite BaWON2
- 2020Local manipulation of metamagnetism by strain nanopatterningcitations
- 2020Strain and voltage control of magnetic and electric properties of FeRh films
- 2019Growth Window of Ferroelectric Epitaxial Hf0.5Zr0.5O2 Thin Films
- 2018Control of the polarization of ferroelectric capacitors by the concurrent action of light and adsorbatescitations
- 2018Control of Polar Orientation and Lattice Strain in Epitaxial BaTiO3 Films on Silicon
- 2018High-temperature Magnetodielectric Bi (Fe0.5Mn0.5) O3 Thin Films with Checkerboard-Ordered Oxygen Vacancies and Low Magnetic Dampingcitations
- 2018Control of the Polarization of Ferroelectric Capacitors by the Concurrent Action of Light and Adsorbates
- 2017Hidden magnetic states emergent under electric field, in a room temperature composite magnetoelectric multiferroic
- 2017Hidden Magnetic States Emergent Under Electric Field, In A Room Temperature Composite Magnetoelectric Multiferroiccitations
- 2016Investigation of magneto-structural phase transition in FeRh by reflectivity and transmittance measurements in visible and near-infrared spectral region
- 2016Isothermal anisotropic magnetoresistance in antiferromagnetic metallic IrMncitations
- 2016Isothermal anisotropic magnetoresistance in antiferromagnetic metallic IrMncitations
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article
Disentangling stress and strain effects in ferroelectric HfO2
Abstract
Ferroelectric HfO2 films are usually polycrystalline and contain a mixture of polar and nonpolar phases. This challenges the understanding and control of polar phase stabilization and ferroelectric properties. Several factors, such as dopants, oxygen vacancies, or stress, among others, have been investigated and shown to have a crucial role on optimizing the ferroelectric response. Stress generated during deposition or annealing of thin films is a main factor determining the formed crystal phases and influences the lattice strain of the polar orthorhombic phase. It is difficult to discriminate between stress and strain effects on polycrystalline ferroelectric HfO2 films, and the direct impact of orthorhombic lattice strain on ferroelectric polarization has yet to be determined experimentally. Here, we analyze the crystalline phases and lattice strain of several series of doped HfO2 epitaxial films. We conclude that stress has a critical influence on metastable orthorhombic phase stabilization and ferroelectric polarization. On the contrary, the lattice deformation effects are much smaller than those caused by variations in the orthorhombic phase content. The experimental results are confirmed by density functional theory calculations on HfO2 and Hf0.5Zr0.5O2 ferroelectric phases. ; Financial support from the Spanish Ministry of Science and Innovation (No.MCIN/AEI/10.13039/501100011033), through the Severo Ochoa FUNFUTURE (No. CEX2019-000917-S), project Nos. PID2020-112548RB-I00 and PID2019-107727RB-I00, from Generalitat de Catalunya (No. 2021 SGR 00804), and from CSIC through the i-LINK (No. LINKA20338) program is acknowledged. We also acknowledge Project No. TED2021-130453B-C21, funded by No. MCIN/AEI/10.13039/501100011033 and the European Union Next Generation EU/PRTR. T.S. is financially supported by China Scholarship Council (CSC) under Grant No. 201807000104. This work was also supported by (i) the Portuguese Foundation for Science and Technology (FCT) in the framework of the Strategic Funding Contract No. ...