This section collects all the official material created during the TransFerrr project as well as the publications that disseminate the results achieved by the project. If you are interested in communicating about TransFerr project get in contact with our dissemination manager Katarzyna Lenczewska (k.lenczewska@intibs.pl).

Morphotropic Phase Boundary in Sm-Substituted BiFeO3 Ceramics: Local vs Microscopic Approaches – Article 45

Abstract: Samarium substituted bismuth ferrite (BiFeO3) ceramics prepared by sol-gel synthesis method were studied using both local scale and microscopic measurement techniques in order to clarify an evolution of the crystal structure of the compounds across the morphotropic phase boundary region. X-ray diffraction analysis, transmission and scanning electron microscopies, XPS, [...]

Evolution of the crystal structure and magnetic properties of Sm-doped BiFeO3 ceramics across the phase boundary region – Article 41

Abstract: Samarium doped BiFeO3 compounds having nano-size crystallites were prepared by the ethylene glycol assisted sol-gel synthesis method. X-ray diffraction and SEM measurements as well as Raman spectroscopy and FTIR experiments were used to clarify an evolution of the crystal structure on microscopic and local scale levels in the compounds having [...]

Impact of Gadolinium on the Structure and Magnetic Properties of Nanocrystalline Powders of Iron Oxides Produced by the Extraction-Pyrolytic Method – Article 40

Abstract: Interest in magnetic nanoparticles is primarily due to their practical use. In this work, for the production of nanocrystalline powders of pure and gadolinium doped iron oxides, the extraction-pyrolytic method (EPM) was used. As a precursor, either iron-containing extract (iron (III) caproate in caproic acid) or its mixture with [...]

Strain engineering of ferromagnetic-graphene-ferroelectric nanostructures – Article 39

Abstract: We calculate a spin-polarized conductance in a nanostructure with a composition of a “high-temperature ferromagnetic insulator-graphene-ferroelectric film,” with special attention paid to control of the electric polarization direction and value in a multiaxial ferroelectric film by a misfit strain. We propose a phenomenological model, taking into account the shift [...]

Causal analysis of competing atomistic mechanisms in ferroelectric materials from high-resolution scanning transmission electron microscopy data – Article 38

Abstract: Machine learning has emerged as a powerful tool for the analysis of mesoscopic and atomically resolved images and spectroscopy in electron and scanning probe microscopy, with the applications ranging from feature extraction to information compression and elucidation of relevant order parameters to inversion of imaging data to reconstruct structural [...]

Melting of spatially modulated phases at domain wall/surface junctions in antiferrodistortive multiferroics – Article 37

Abstract: A physical understanding of the nature of spatially modulated phases (SMPs) in rare-earth-doped antiferrodistortive (AFD) multiferroics and how they behave close to surfaces and interfaces is lacking. Here the emergence of the antiferroelectric (AFE), ferroelectric (FE), or ferrielectric (AFE-FE) spatial modulation in the vicinity of the morphotropic phase transition [...]

Piezoelectric domain walls in van der Waals antiferroelectric CuInP2Se6 – Article 33

Abstract: Polar van der Waals chalcogenophosphates exhibit unique properties, such as negative electrostriction and multi-well ferrielectricity, and enable combining dielectric and 2D electronic materials. Using low temperature piezoresponse force microscopy, we revealed coexistence of piezoelectric and non-piezoelectric phases in CuInP2Se6, forming unusual domain walls with enhanced piezoelectric response. From systematic [...]

Nanoscale ferroelectricity in pseudo-cubic sol-gel derived barium titanate – bismuth ferrite (BaTiO3 – BiFeO3) solid solutions – Article 28

Abstract: Single phase barium titanate–bismuth ferrite ((1-x)BaTiO3-(x)BiFeO3, BTO-BFO) solid solutions were prepared using citric acid and ethylene glycol assisted sol-gel synthesis method. Depending on the dopant content the samples are characterized by tetragonal, tetragonal-pseudocubic, pseudocubic and rhombohedral structure as confirmed by Raman spectroscopy and XRD measurements. An increase of the [...]

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