J. Hlinka
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View article: Terahertz-field activation of polar skyrons
Terahertz-field activation of polar skyrons Open
Unraveling collective modes arising from coupled degrees of freedom is crucial for understanding complex interactions in solids and developing new functionalities. Unique collective behaviors emerge when two degrees of freedom, ordered on …
View article: Curvature‐Controlled Polarization in Adaptive Ferroelectric Membranes
Curvature‐Controlled Polarization in Adaptive Ferroelectric Membranes Open
This study explores the ferroelectric domain structure and mechanical properties of PbTiO 3 ‐based membranes, which develop a well‐ordered and crystallographic‐oriented ripple pattern upon release from their growth substrate. The ferrolect…
View article: Pyramidal charged domain walls in ferroelectric BiFeO3
Pyramidal charged domain walls in ferroelectric BiFeO3 Open
Domain structures play a crucial role in the electric, mechanical, and other properties of ferroelectric materials. In this study, we uncover the physical origins of the enigmatic zigzag domain structure in the prototypical multiferroic ma…
View article: Establishing a pure antiferroelectric PbZrO3 phase through tensile epitaxial strain
Establishing a pure antiferroelectric PbZrO3 phase through tensile epitaxial strain Open
The nature of lead zirconate, the historical antiferroelectric material, has recently been challenged. In PbZrO 3 epitaxial films, thickness reduction engenders competition among antiferroelectric, ferrielectric and ferroelectric phases. A…
View article: Correction to “Robust SrTiO<sub>3</sub> Passivation of Silicon Photocathode by Reduced Graphene Oxide for Solar Water Splitting”
Correction to “Robust SrTiO<sub>3</sub> Passivation of Silicon Photocathode by Reduced Graphene Oxide for Solar Water Splitting” Open
View article: Thermal stability and topological charge fragmentation in antiskyrmions of rhombohedral barium titanate
Thermal stability and topological charge fragmentation in antiskyrmions of rhombohedral barium titanate Open
Antiskyrmions, as topological quasiparticles, hold significant promise for spintronics and nanoscale data storage applications. Using molecular dynamics simulations based on effective Hamiltonians, we investigated the thermal stability of …
View article: Orbital angular momentum impact on light scattering by phonons tested experimentally
Orbital angular momentum impact on light scattering by phonons tested experimentally Open
Polarized Raman spectra of piezoelectric bismuth germanate single crystal were recorded using vortex light in order to verify the predicted symmetry selection rules for Raman scattering of photons with nonzero orbital angular momentum. Fir…
View article: Creation, annihilation and transport of nonmagnetic antiskyrmions within Ginzburg–Landau–Devonshire model
Creation, annihilation and transport of nonmagnetic antiskyrmions within Ginzburg–Landau–Devonshire model Open
Atomistic model calculations recently revealed that the polarization pattern at the cross section through nanoscale ferroelectric nanodomains in rhombohedral barium titanate shows a clear antiskyrmion attributes such as the net invariant t…
View article: Fragmented charged domain wall below the tetragonal-orthorhombic phase transition in BaTiO3
Fragmented charged domain wall below the tetragonal-orthorhombic phase transition in BaTiO3 Open
Ferroelectric charged domain walls are known for their high electrical conductivity, making them promising candidates for modern electronics. A remarkably high conductivity and nominal charge density has been found in the head-to-head ferr…
View article: Pyramidal charged domain walls in ferroelectric BiFeO$_3$
Pyramidal charged domain walls in ferroelectric BiFeO$_3$ Open
Domain structures play a crucial role in the electric, mechanical and other properties of ferroelectric materials. In this study, we uncover the physical origins of the enigmatic zigzag domain structure in the prototypical multiferroic mat…
View article: BiFeO$_3$ nanoparticles at low-temperature using atomistic simulations -- surface charge distribution and terminations
BiFeO$_3$ nanoparticles at low-temperature using atomistic simulations -- surface charge distribution and terminations Open
This paper analyzes how the ferroelectric properties of cubic-like BiFeO$_3$ nanoparticles are affected by different terminations and charge distributions at the surface using ab-initio-based atomistic computational experiments. Our findin…
View article: Non-reciprocal neutral ferroelectric domain walls in BiFeO3
Non-reciprocal neutral ferroelectric domain walls in BiFeO3 Open
This paper analyzes a peculiar phenomenon of non-reciprocal domain wall pairs and illustrate the implications in ab-initio-based atomistic computational experiments with (112)-oriented planar R180 domain walls within the canonical multifer…
View article: Paradoxical creation of a polydomain pattern by electric field in BaTiO3 crystal
Paradoxical creation of a polydomain pattern by electric field in BaTiO3 crystal Open
It is known that ferroelectric single crystals can be turned from a polydomain to a monodomain state by the application of an electric field. Here we report an unexpected opposite effect: the formation of through-the-crystal polydomain pat…
View article: Thermal Stability and Topological Charge Fragmentation in Antiskyrmions of Rhombohedral Barium Titanate
Thermal Stability and Topological Charge Fragmentation in Antiskyrmions of Rhombohedral Barium Titanate Open
Antiskyrmions, as topological quasi-particles, hold significant promise for spintronics and nanoscale data storage applications. Using molecular dynamics simulations based on effective Hamiltonians, we investigate the thermal stability of …
View article: Assessing the Ubiquity of Bloch Domain Walls in Ferroelectric Lead Titanate Superlattices
Assessing the Ubiquity of Bloch Domain Walls in Ferroelectric Lead Titanate Superlattices Open
The observation of unexpected polarization textures such as vortices, skyrmions, and merons in various oxide heterostructures has challenged the widely accepted picture of ferroelectric domain walls as being Ising-like. Bloch components in…
View article: Fragmented charged domain wall below the tetragonal-orthorhombic phase transition in BaTiO3
Fragmented charged domain wall below the tetragonal-orthorhombic phase transition in BaTiO3 Open
Ferroelectric charged domain walls are known for their high electrical conductivity, making them promising candidates for applications in modern electronics. A remarkably high conductivity and nominal charge density has been found in the h…
View article: Creation, annihilation and transport of nonmagnetic antiskyrmions within Ginzburg-Landau-Devonshire model
Creation, annihilation and transport of nonmagnetic antiskyrmions within Ginzburg-Landau-Devonshire model Open
Atomistic model calculations recently revealed that the polarization pattern at the cross-section through nanoscale ferroelectric nanodomains in rhombohedral barium titanate shows a clear antiskyrmion attributes such as the net invariant t…
View article: Assessing the nature of nanoscale ferroelectric domain walls in lead titanate multilayers
Assessing the nature of nanoscale ferroelectric domain walls in lead titanate multilayers Open
The observation of unexpected polarisation textures such as vortices, skyrmions and merons in various oxide heterostructures has challenged the widely accepted picture of ferroelectric domain walls as being Ising-like. Bloch components in …
View article: Antiskyrmions in Ferroelectric Barium Titanate
Antiskyrmions in Ferroelectric Barium Titanate Open
Typical magnetic skyrmion is a string of inverted magnetization within a ferromagnet, protected by a sleeve of a vortexlike spin texture, such that its cross-section carries an integer topological charge. Some magnets form antiskyrmions, t…
View article: Electric-field-induced multiferroic topological solitons
Electric-field-induced multiferroic topological solitons Open
View article: Robust SrTiO<sub>3</sub> Passivation of Silicon Photocathode by Reduced Graphene Oxide for Solar Water Splitting
Robust SrTiO<sub>3</sub> Passivation of Silicon Photocathode by Reduced Graphene Oxide for Solar Water Splitting Open
Development of a robust photocathode using low-cost and high-performing materials, e.g., p-Si, to produce clean fuel hydrogen has remained challenging since the semiconductor substrate is easily susceptible to (photo)corrosion under photoe…
View article: Possible ferroic properties of copper-substituted lead phosphate apatite
Possible ferroic properties of copper-substituted lead phosphate apatite Open
Paper provides symmetry arguments explaining that charge density wave induced by copper doping to lead phosphate apatite crystal implies a symmetry breaking phase transition from $P6_3/m$ (176) to a polar and chiral phase with $P6_3$ (173)…
View article: Charged Domain Walls in BaTiO<sub>3</sub> Crystals Emerging from Superdomain Boundaries (Adv. Electron. Mater. 6/2023)
Charged Domain Walls in BaTiO<sub>3</sub> Crystals Emerging from Superdomain Boundaries (Adv. Electron. Mater. 6/2023) Open
Charged Domain Walls In article number 2300005, Petr S. Bednyakov and Jiří Hlinka observe transient domain structure with multiple superdomains containing bundles of ferroelastic subdomains during the paraelectric to the ferroelectric tran…
View article: Charged Domain Walls in BaTiO<sub>3</sub> Crystals Emerging from Superdomain Boundaries
Charged Domain Walls in BaTiO<sub>3</sub> Crystals Emerging from Superdomain Boundaries Open
Previous experiments with barium titanate crystals have shown that electric field applied in the vicinity of its ferroelectric phase transition can be used to introduce peculiar ferroelectric domain walls, persisting to the ambient conditi…
View article: Antiskyrmionic ferroelectric medium
Antiskyrmionic ferroelectric medium Open
Typical magnetic skyrmion is a string of inverted magnetization within a ferromagnet, protected by a sleeve of a vortex-like spin texture, such that its cross-section carries a positive integer topological charge. Some magnets form antisky…
View article: Tiling the Silicon for Added Functionality: PLD Growth of Highly Crystalline STO and PZT on Graphene Oxide-Buffered Silicon Surface
Tiling the Silicon for Added Functionality: PLD Growth of Highly Crystalline STO and PZT on Graphene Oxide-Buffered Silicon Surface Open
The application of two-dimensional (2D) materials has alleviated a number of challenges of traditional epitaxy and pushed forward the integration of dissimilar materials. Besides acting as a seed layer for van der Waals epitaxy, the 2D mat…
View article: Finite-temperature investigation of homovalent and heterovalent substituted <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>BaTiO</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:math> from first principles
Finite-temperature investigation of homovalent and heterovalent substituted from first principles Open
Barium titanate (BT) solid solutions are used in a wide range of applications such as piezoelectric actuators and high-performance energy storage devices. The key to achieve and tune desired macroscopic properties is the chemical modificat…
View article: Favorable band alignment for photocatalysis at the strontium germanate interface with silicon
Favorable band alignment for photocatalysis at the strontium germanate interface with silicon Open
Photocatalytic water splitting is a promising strategy for large-scale clean energy production. However, efficient and low-cost solid-state photocatalysts are still lacking. We present here first-principles calculations to investigate the …
View article: Zig-zag charged domain walls in ferroelectric PbTiO$_3$
Zig-zag charged domain walls in ferroelectric PbTiO$_3$ Open
We report a theoretical investigation of a charged 180$^\circ$ domain wall in ferroelectric PbTiO$_3$, compensated by randomly distributed immobile charge defects. For this we utilize atomistic shell-model simulations and continuous phase-…
View article: Large imprint in epitaxial 0.67Pb(Mg1/3Nb2/3)O3-0.33PbTiO3 thin films for piezoelectric energy harvesting applications
Large imprint in epitaxial 0.67Pb(Mg1/3Nb2/3)O3-0.33PbTiO3 thin films for piezoelectric energy harvesting applications Open
Tuning and stabilizing a large imprint in epitaxial relaxor ferroelectric thin films is one of the key factors for designing micro-electromechanical devices with an enhanced figure of merit (FOM). In this work, epitaxial 500 nm-thick 0.67P…