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Themed collection Editors' Collection: Ferroelectric and Multiferroic Materials

20 items
Open Access Paper

Bismuth–iron-based precursor: preparation, phase composition, and two methods of thermal treatment

Preparation and phase composition study of bismuth–iron-based precursor, and its thermal treatment by calcination and hydrothermal processes, which can be used to control the synthesis of pure BiFeO3.

Graphical abstract: Bismuth–iron-based precursor: preparation, phase composition, and two methods of thermal treatment
Open Access Paper

High-performance ferroelectric non-volatile memory based on La-doped BiFeO3 thin films

An ultrathin (6.2 nm) ferroelectric La0.1Bi0.9FeO3 (LBFO) film was epitaxially grown on a 0.7 wt% Nb-doped SrTiO3 (001) single-crystal substrate by carrying out pulsed laser deposition to form a Pt/La0.1Bi0.9FeO3/Nb-doped SrTiO3 heterostructure.

Graphical abstract: High-performance ferroelectric non-volatile memory based on La-doped BiFeO3 thin films
Open Access Paper

Effect of Bi-substitution into the A-site of multiferroic La0.8Ca0.2FeO3 on structural, electrical and dielectric properties

(La0.8Ca0.2)1−xBixFeO3 (x = 0.00, 0.05, 0.10, 0.15 and 0.20) (LCBFO) multiferroic compounds have been prepared by the sol–gel method and calcined at 800 °C.

Graphical abstract: Effect of Bi-substitution into the A-site of multiferroic La0.8Ca0.2FeO3 on structural, electrical and dielectric properties
Open Access Paper

Electro–opto–mechano driven reversible multi-state memory devices based on photocurrent in Bi0.9Eu0.1FeO3/La0.67Sr0.33MnO3/PMN-PT heterostructures

The mutual interaction between polarization switching, light and piezoelectric strain.

Graphical abstract: Electro–opto–mechano driven reversible multi-state memory devices based on photocurrent in Bi0.9Eu0.1FeO3/La0.67Sr0.33MnO3/PMN-PT heterostructures
Open Access Paper

Electrical properties of Sb2O3-modified BiScO3–PbTiO3-based piezoelectric ceramics

Compared with pure Pb-based perovskite ferroelectric materials, BiMeO3–PbTiO3 (Me = Sc3+, In3+, and Yb3+) systems have remarkable advantages in their Curie temperatures.

Graphical abstract: Electrical properties of Sb2O3-modified BiScO3–PbTiO3-based piezoelectric ceramics
Open Access Paper

Sr9In(VO4)7 as a model ferroelectric in the structural family of β-Ca3(PO4)2-type phosphates and vanadates

Novel structural mechanism of ferroelectric phase transition was discovered in Sr9In(VO4)7.

Graphical abstract: Sr9In(VO4)7 as a model ferroelectric in the structural family of β-Ca3(PO4)2-type phosphates and vanadates
Open Access Paper

Effect of ZnO on (ferroelectric) fatigue retention and thermal stability of ferroelectric properties in lead free (K0.5Na0.5)(Nb0.7Ta0.3)O3 ceramics

This work investigates and reports the effect of ZnO addition on the ferroelectric properties of (K0.5Na0.5)(Nb0.7Ta0.3)O3 (KNNT) ceramics prepared by a solid state reaction method.

Graphical abstract: Effect of ZnO on (ferroelectric) fatigue retention and thermal stability of ferroelectric properties in lead free (K0.5Na0.5)(Nb0.7Ta0.3)O3 ceramics
Open Access Paper

Structure properties and dielectric relaxation of Ca0.1Na0.9Ti0.1Nb0.9O3 ceramic

In this paper, the synthesis of Ca0.1Na0.9Ti0.1Nb0.9O3 (CNTN) ceramic by a solid-state reaction is reported. The results of Rietveld refinement of X-ray diffraction patterns at room temperature showed a pure tetragonal perovskite (P4mm space group).

Graphical abstract: Structure properties and dielectric relaxation of Ca0.1Na0.9Ti0.1Nb0.9O3 ceramic
Open Access Paper

High electrostrictive properties and energy storage performances with excellent thermal stability in Nb-doped Bi0.5Na0.5TiO3-based ceramics

Lowering Td to enlarge the temperature range between Td and the maximum dielectric temperature (Tm) proved to be an effective strategy to enhance the thermal stability strain and energy storage properties in BNT-based ceramics.

Graphical abstract: High electrostrictive properties and energy storage performances with excellent thermal stability in Nb-doped Bi0.5Na0.5TiO3-based ceramics
Open Access Paper

Metastable monoclinic [110] layered perovskite Dy2Ti2O7 thin films for ferroelectric applications

Using the Combinatorial Substrate Epitaxy (CSE) approach, we report the stabilization of Dy2Ti2O7 epitaxial monoclinic, layered-perovskite phase Dy2Ti2O7 thin films.

Graphical abstract: Metastable monoclinic [110] layered perovskite Dy2Ti2O7 thin films for ferroelectric applications
Open Access Paper

Modulation of charged a1/a2 domains and piezoresponses of tensile strained PbTiO3 films by the cooling rate

The cooling rates can induce domain configurations to change, thus realizing the evolution of the domains of the PTO films.

Graphical abstract: Modulation of charged a1/a2 domains and piezoresponses of tensile strained PbTiO3 films by the cooling rate
Open Access Paper

Strain vs. charge mediated magnetoelectric coupling across the magnetic oxide/ferroelectric interfaces

We utilize polarized neutron reflectometry in consort with ab initio based density functional theory calculations to study interface magnetoelectric coupling across a ferroelectric PbZr0.2Ti0.8O3 and magnetic La0.67Sr0.33MnO3 heterostructure.

Graphical abstract: Strain vs. charge mediated magnetoelectric coupling across the magnetic oxide/ferroelectric interfaces
Open Access Paper

Improvement of electric field-induced strain and energy storage density properties in lead-free BNKT-based ceramics modified by BFT doping

The effects of Ba(Fe0.5Ta0.5)O3 additive on phase, dielectric, ferroelectric, piezoelectric, electric field-induced strain, and energy storage density of the Bi0.5(Na0.80K0.20)0.5TiO3–0.03(Ba0.70Sr0.03)TiO3 ceramics have been investigated.

Graphical abstract: Improvement of electric field-induced strain and energy storage density properties in lead-free BNKT-based ceramics modified by BFT doping
Open Access Paper

Formation of polarization needle-like domain and its unusual switching in compositionally graded ferroelectric thin films: an improved phase field model

New phase field model to reveal switching mechanism of needle domain in compositionally graded ferroelectric thin film.

Graphical abstract: Formation of polarization needle-like domain and its unusual switching in compositionally graded ferroelectric thin films: an improved phase field model
Open Access Paper

Superlattice-like structure and enhanced ferroelectric properties of intergrowth Aurivillius oxides

Aurivillius oxides with an intergrowth structures have been receiving increasing interest because of their special structures and potential outstanding ferroelectric properties.

Graphical abstract: Superlattice-like structure and enhanced ferroelectric properties of intergrowth Aurivillius oxides
Open Access Paper

Composition-induced phase evolution and high strain response in Ba(Zn1/3Nb2/3)O3-modified (Bi0.5Na0.5)TiO3-based lead-free ferroelectrics

Addition of 1.0 mol% Ba(Zn1/3Nb2/3O3) into (Bi0.5Na0.5)0.93Ba0.07TiO3 results in the decrease of the rhombohedrality and the evolution from ferroelectric to antiferroelectric relaxor, thus leads to the emergence of a large field-induced strain of 0.39%.

Graphical abstract: Composition-induced phase evolution and high strain response in Ba(Zn1/3Nb2/3)O3-modified (Bi0.5Na0.5)TiO3-based lead-free ferroelectrics
Open Access Paper

Studies of La- and Pr-driven reverse distortion of FeO6 octahedral structure, magnetic properties and hyperfine interaction of BiFeO3 powder

Mössbauer spectra of the Bi1−xyLaxPryFeO3 (x = 0 and 0.05; y = 0, 0.10, 0.15 and 0.20) (BLPFO) powders.

Graphical abstract: Studies of La- and Pr-driven reverse distortion of FeO6 octahedral structure, magnetic properties and hyperfine interaction of BiFeO3 powder
Open Access Paper

Microstructure and local electrical behavior in [(Nd2Ti2O7)4/(SrTiO3)n]10 (n = 4–8) superlattices

Artificial [(Nd2Ti2O7)4/(SrTiO3)n]10 superlattices were epitaxially grown. Local conductivity and misleading PFM signals were mainly attributed to the oxygen vacancies in the SrTiO3 layers and to the mixed valence state of the titanium.

Graphical abstract: Microstructure and local electrical behavior in [(Nd2Ti2O7)4/(SrTiO3)n]10 (n = 4–8) superlattices
Open Access Paper

Switching properties of epitaxial La0.5Sr0.5CoO3/Na0.5Bi0.5TiO3/La0.5Sr0.5CoO3 ferroelectric capacitor

La0.5Sr0.5CoO3/Na0.5Bi0.5TiO3/La0.5Sr0.5CoO3 (LSCO/NBT/LSCO) ferroelectric capacitors have been successfully fabricated on (001) SrTiO3 substrate, in which the LSCO film is prepared by magnetron sputtering and the NBT film by pulsed laser deposition.

Graphical abstract: Switching properties of epitaxial La0.5Sr0.5CoO3/Na0.5Bi0.5TiO3/La0.5Sr0.5CoO3 ferroelectric capacitor
Open Access Paper

Mechanical switching in ferroelectrics by shear stress and its implications on charged domain wall generation and vortex memory devices

Combining thermodynamic calculation and phase-field simulation, we revealed that mechanical switching of polarization can be achieved in ferroelectric by shear stress via a simple mechanism where the presence of flexoelectricity is not necessary.

Graphical abstract: Mechanical switching in ferroelectrics by shear stress and its implications on charged domain wall generation and vortex memory devices
20 items

About this collection

In this collection, guest edited by Associate Editor Dr Donna Arnold (University of Kent), we look at some of the contributions to the fields of multiferroic and ferroelectric materials published in the journal. The articles featured here focus on experimental studies of inorganic solid-state ceramics and thin films (including heterostructures and devices). The collection showcases the significance of not only the search for new materials with enhanced properties but also the importance of understanding the structure-property correlations in both powders and films as well as demonstrating their application in environments closer to commercial use. These articles demonstrate the continued growth of these areas as we strive towards next generation devices based on ferroelectric and multiferroic materials.

Ferroelectric and multiferroic materials continue to attract extensive attention within the literature due to the potential of these materials to have an increased impact in our everyday lives. Research covers a whole plethora of chemistry and physics from the search for Pb-free ferroelectrics and new energy storage materials to demonstration of real-world device applications based on inorganic and/or organic materials including experimental and computational studies.

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