Results 111 to 120 of about 9,032,815 (373)

Theory of PbTiO3, BaTiO3, and SrTiO3 Surfaces

open access: yes, 1999
First-principles total-energy calculations are carried out for (001) surfaces of the cubic perovskite ATiO3 compounds PbTiO3, BaTiO3, and SrTiO3. Both AO-terminated and TiO2-terminated surfaces are considered, and fully-relaxed atomic configurations are ...
Meyer, B.   +2 more
core   +2 more sources

Ferroelectric and Antiferroelectric Chiral Multilactate Liquid Crystalline Materials with Negative Dielectric Anisotropy

open access: green, 2023
Priyanta Barman   +5 more
openalex   +1 more source

Artificial ferroelectric materials

open access: yes, 2008
Dans ce travail, nous étudions les propriétés de superréseaux de PbTiO3 et SrTiO3. Pour des couches épaisses de chacun des constituants, le système se comporte comme prévu par notre modèle électrostatique, en trouvant un équilibre entre les propriétés ferro- et paraélectrique de ces derniers.
openaire   +2 more sources

Coexisting Rashba/Dresselhaus Spin Splitting in Solution‐Processed Bournonite Films Using Circular Photogalvanic Effect

open access: yesAdvanced Functional Materials, EarlyView.
Circular photogalvanic effect measurements and first‐principles calculations reveal spin‐splitting states in solution‐processed bournonite films (CuPbSbS3) due to structural and bulk inversion asymmetry. The results provide experimental confirmation of coexisting Rashba and Dresselhaus spin‐splitting states in this non‐centrosymmetric chalcogenide ...
Aeron McConnell   +5 more
wiley   +1 more source

Polarons, free charge localisation and effective dielectric permittivity in oxides

open access: yes, 2010
This review will deal with several types of free charge localisation in oxides and their consequences on the effective dielectric spectra of such materials.
Maglione, Mario
core   +1 more source

Quantitative evaluation of the piezoelectric response of unpoled ferroelectric ceramics from elastic and dielectric measurements: tetragonal BaTiO$_3$

open access: yes, 2017
A method for evaluating the piezoelectric response of unpoled ferroelectric ceramics from elastic and dielectric measurements is proposed and tested on BaTiO$_3$.
Cordero, F.
core   +1 more source

Ferroelectric Materials: A Novel Pathway for Efficient Solar Water Splitting

open access: yesApplied Sciences, 2018
Over the past few decades, solar water splitting has evolved into one of the most promising techniques for harvesting hydrogen using solar energy. Despite the high potential of this process for hydrogen production, many research groups have encountered ...
Sangmo Kim, N. Nguyen, C. Bark
semanticscholar   +1 more source

Impact of Lattice Heterogeneity on Broadband Optical Retardation in Stacked 2D Perovskite Single Crystals

open access: yesAdvanced Functional Materials, EarlyView.
It is shown that interfaces between organic and inorganic layers govern long‐range stacking disorder and in‐plane anisotropy in 2D metal‐halide perovskites. By comparing single‐cation AB‐AB and ordered mixed‐cation ABCD‐ABCD stackings, SCXRD reveals enhanced mosaicity, while optics confirm high birefringence.
Yixuan Dou   +6 more
wiley   +1 more source

Are lead-free relaxor ferroelectric materials the most promising candidates for energy storage capacitors?

open access: yesProgress in Materials Science, 2022
A. Jayakrishnan   +6 more
semanticscholar   +1 more source

Single‐Crystalline Lateral p‐SnS/n‐SnSe van der Waals Heterostructures by Vapor Transport Growth with In Situ Bi Doping

open access: yesAdvanced Functional Materials, EarlyView.
In‐situ doping during growth of SnSe and subsequent attachment of SnS produces high‐quality lateral pn‐heterojunctions between van der Waals semiconductors. Electron beam induced current measurements demonstrate electrically active pn‐junctions, paving the way for devices that harness charge separation at lateral interfaces in layered heterostructures.
Peter Sutter   +4 more
wiley   +1 more source

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