Uncovering ferroelectric polarization in tetragonal (Bi(1/2)K(1/2))TiO(3)–(Bi(1/2)Na(1/2))TiO(3) single crystals

We report the robust ferroelectric properties of (1 − x)(Bi(1/2)Na(1/2))TiO(3)–x(Bi(1/2)K(1/2))TiO(3) (x = 33%) single crystals grown by a top-seeded solution growth process under a high oxygen-pressure (0.9 MPa) atmosphere. The sample exhibit a large remanent polarization of 48 μC/cm(2) and a sizea...

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Autores principales: Kitanaka, Yuuki, Noguchi, Yuji, Miyayama, Masaru
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6917808/
https://www.ncbi.nlm.nih.gov/pubmed/31848370
http://dx.doi.org/10.1038/s41598-019-55576-y
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author Kitanaka, Yuuki
Noguchi, Yuji
Miyayama, Masaru
author_facet Kitanaka, Yuuki
Noguchi, Yuji
Miyayama, Masaru
author_sort Kitanaka, Yuuki
collection PubMed
description We report the robust ferroelectric properties of (1 − x)(Bi(1/2)Na(1/2))TiO(3)–x(Bi(1/2)K(1/2))TiO(3) (x = 33%) single crystals grown by a top-seeded solution growth process under a high oxygen-pressure (0.9 MPa) atmosphere. The sample exhibit a large remanent polarization of 48 μC/cm(2) and a sizeable piezoelectric strain constant of 460 pm/V. Neutron powder diffraction structural analysis combined with first-principles calculations reveals that the large ferroelectric polarization comparable to PbTiO(3) stems from the hybridization between Bi-6p and O-2p orbitals at a moderately negative chemical pressure.
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spelling pubmed-69178082019-12-19 Uncovering ferroelectric polarization in tetragonal (Bi(1/2)K(1/2))TiO(3)–(Bi(1/2)Na(1/2))TiO(3) single crystals Kitanaka, Yuuki Noguchi, Yuji Miyayama, Masaru Sci Rep Article We report the robust ferroelectric properties of (1 − x)(Bi(1/2)Na(1/2))TiO(3)–x(Bi(1/2)K(1/2))TiO(3) (x = 33%) single crystals grown by a top-seeded solution growth process under a high oxygen-pressure (0.9 MPa) atmosphere. The sample exhibit a large remanent polarization of 48 μC/cm(2) and a sizeable piezoelectric strain constant of 460 pm/V. Neutron powder diffraction structural analysis combined with first-principles calculations reveals that the large ferroelectric polarization comparable to PbTiO(3) stems from the hybridization between Bi-6p and O-2p orbitals at a moderately negative chemical pressure. Nature Publishing Group UK 2019-12-17 /pmc/articles/PMC6917808/ /pubmed/31848370 http://dx.doi.org/10.1038/s41598-019-55576-y Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Kitanaka, Yuuki
Noguchi, Yuji
Miyayama, Masaru
Uncovering ferroelectric polarization in tetragonal (Bi(1/2)K(1/2))TiO(3)–(Bi(1/2)Na(1/2))TiO(3) single crystals
title Uncovering ferroelectric polarization in tetragonal (Bi(1/2)K(1/2))TiO(3)–(Bi(1/2)Na(1/2))TiO(3) single crystals
title_full Uncovering ferroelectric polarization in tetragonal (Bi(1/2)K(1/2))TiO(3)–(Bi(1/2)Na(1/2))TiO(3) single crystals
title_fullStr Uncovering ferroelectric polarization in tetragonal (Bi(1/2)K(1/2))TiO(3)–(Bi(1/2)Na(1/2))TiO(3) single crystals
title_full_unstemmed Uncovering ferroelectric polarization in tetragonal (Bi(1/2)K(1/2))TiO(3)–(Bi(1/2)Na(1/2))TiO(3) single crystals
title_short Uncovering ferroelectric polarization in tetragonal (Bi(1/2)K(1/2))TiO(3)–(Bi(1/2)Na(1/2))TiO(3) single crystals
title_sort uncovering ferroelectric polarization in tetragonal (bi(1/2)k(1/2))tio(3)–(bi(1/2)na(1/2))tio(3) single crystals
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6917808/
https://www.ncbi.nlm.nih.gov/pubmed/31848370
http://dx.doi.org/10.1038/s41598-019-55576-y
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AT miyayamamasaru uncoveringferroelectricpolarizationintetragonalbi12k12tio3bi12na12tio3singlecrystals

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