| People | Locations | Statistics |
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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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Dkhil, Brahim
CentraleSupélec
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Topics
Publications (26/26 displayed)
- 2025Impact of transient liquid phase on the cold sintering of multiferroic BiFeO3citations
- 2024Ferroelectric texture of individual barium titanate nanocrystalscitations
- 2024Oxygen tilt driven polar superorders in BiFeO3-based superlatticescitations
- 2023Grain size and piezoelectric effect on magnetoelectric coupling in BFO/PZT perovskite-perovskite compositescitations
- 2023Great multiferroic properties in BiFeO 3 /BaTiO 3 system with composite-like structurecitations
- 2023Dislocations and a domains coupling in PbTiO3 thin filmscitations
- 2023BiFeO 3 Nanoparticles: The “Holy‐Grail” of Piezo‐Photocatalysts?citations
- 2022Thermal and Electron Plasma Effects on Phase Separation Dynamics Induced by Ultrashort Laser Pulsescitations
- 2021Surface and bulk ferroelectric phase transition in super-tetragonal BiFeO 3 thin filmscitations
- 2020Switchable two-dimensional electron gas based on ferroelectric Ca:SrTiO 3citations
- 2020Crystallization mechanisms and optical properties of BiFeO3 nano and microparticles
- 2020Interfacial Strain Gradients Control Nanoscale Domain Morphology in Epitaxial BiFeO 3 Multiferroic Filmscitations
- 2020Generation and Detection of Acoustic Phonons in nanopatterned Ferroelectrics
- 2020Interfacial Strain Gradients Control Nanoscale Domain Morphology in Epitaxial BiFeO3 Multiferroic Filmscitations
- 2019A magnetic phase diagram for nanoscale epitaxial BiFeO3 filmscitations
- 2019A magnetic phase diagram for nanoscale epitaxial BiFeO 3 filmscitations
- 2018Photocatalytic degradation of methylene blue dye by iron oxide (α-Fe2O3) nanoparticles under visible irradiationcitations
- 2018Nanocrystalline NixCo(0.5−x)Zn0.5Fe2O4 ferrites: fabrication through co-precipitation route with enhanced structural, magnetic and photo-catalytic activitycitations
- 2018Electrostrain in excess of 1% in polycrystalline piezoelectricscitations
- 2017Postsynthetic Approach for the Rational Design of Chiral Ferroelectric Metal–Organic Frameworkscitations
- 2017Synthesis, structural, optical, morphological and magnetic characterization of copper substituted nickel ferrite (CuxNi1−xFe2O4) through co-precipitation methodcitations
- 2016New relativistic Hamiltonian The angular magnetoelectric couplingcitations
- 2015Lead nickel Niobate-Lead Titane : a multifunctional perovskite
- 2015Tailoring the room temperature ferroelectric/paraelectric state in polycrystalline (Ba 0.70 Sr 0.30)TiO 3 thin films for silicon compatible integrationcitations
- 2008Structural phase transitions in nanosized ferroelectric barium strontium titanate filmscitations
- 2005Metal-insulator transition in thin films of RxR ' 1-xNiO3 compounds: DC electrical conductivity and IR spectroscopy measurementscitations
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article
A magnetic phase diagram for nanoscale epitaxial BiFeO3 films
Abstract
<jats:p>BiFeO3 thin films have attracted considerable attention by virtue of their potential application in low-energy spintronic and magnonic devices. BiFeO3 possesses an intricate magnetic structure, characterized by a spin cycloid with period ∼62 nm that governs the functional magnonic response, and which can be modulated or even destroyed by strain, magnetic and electric fields, or chemical doping. The literature on (110)-oriented BiFeO3 films is not explicit in defining the conditions under which this cycloid persists, as its presence depends on synthesis method and thin-film boundary conditions, especially in the sub-100 nm thickness regime. This report aims to end “trial and error” approaches in determining the conditions under which this cycloid and its associated functional magnonic response exist. We show that in specific crystallographic orientations of epitaxial BiFeO3, an unexplored strain parameter—the distortion in the ab plane of the monoclinic unit cell—significantly influences the spin structure. Combining Mössbauer spectroscopy and low-energy Raman spectroscopy with first-principles-based effective Hamiltonian calculations, we show that both average strain and this distortion destroy the cycloid. For films grown on (110)-oriented SrTiO3 substrates, if the BiFeO3 lattice parameters a and b differ by more than about 1.2%, the cycloid is destabilized, resulting in a pseudocollinear magnetic order ground state. We are thereby able to construct a phase diagram of the spin structure for nanoscale epitaxial BiFeO3 films, which aims to resolve long-standing literature inconsistencies and provide powerful guidelines for the design of future magnonic and spintronic devices.</jats:p>