Themed collection Editors' Collection: Ferroelectric and Multiferroic Materials

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.

An ultrathin (6.2 nm) ferroelectric La_0.1Bi_0.9FeO₃ (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/La_0.1Bi_0.9FeO₃/Nb-doped SrTiO₃ heterostructure.

(La_0.8Ca_0.2)_1−xBi_xFeO₃ (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.

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

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

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

This work investigates and reports the effect of ZnO addition on the ferroelectric properties of (K_0.5Na_0.5)(Nb_0.7Ta_0.3)O₃ (KNNT) ceramics prepared by a solid state reaction method.

In this paper, the synthesis of Ca_0.1Na_0.9Ti_0.1Nb_0.9O₃ (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).

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

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

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

We utilize polarized neutron reflectometry in consort with ab initio based density functional theory calculations to study interface magnetoelectric coupling across a ferroelectric PbZr_0.2Ti_0.8O₃ and magnetic La_0.67Sr_0.33MnO₃ heterostructure.

The effects of Ba(Fe_0.5Ta_0.5)O₃ additive on phase, dielectric, ferroelectric, piezoelectric, electric field-induced strain, and energy storage density of the Bi_0.5(Na_0.80K_0.20)_0.5TiO₃–0.03(Ba_0.70Sr_0.03)TiO₃ ceramics have been investigated.

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

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

Addition of 1.0 mol% Ba(Zn_1/3Nb_2/3O₃) into (Bi_0.5Na_0.5)_0.93Ba_0.07TiO₃ 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%.

Mössbauer spectra of the Bi_1−x−yLa_xPr_yFeO₃ (x = 0 and 0.05; y = 0, 0.10, 0.15 and 0.20) (BLPFO) powders.

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.

La_0.5Sr_0.5CoO₃/Na_0.5Bi_0.5TiO₃/La_0.5Sr_0.5CoO₃ (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.

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.