| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2024-07-29 |
| タイトル |
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タイトル |
Polarization behavior in a compositionally graded relaxor?ferroelectric crystal visualized by angle-resolved polarized Raman mapping |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
Shinya Tsukada
Yasuhiro Fujii
Akari Kanagawa
Yukikuni Akishige
Ohwada Kenji
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
Explaining the properties and functions of materials in terms of their atomic arrangements and inhomogeneous structures is a fundamental challenge for the development of ferroelectric oxides. Dielectricity, a fundamental property of matter, can be explained by long-wavelength polar lattice vibrations and dipole relaxations accompanied by electrical bias; therefore spectroscopic methods, such as Raman spectroscopy, can be used to investigate its origin. Herein, we used angle-resolved polarized Raman mapping to investigate how phase boundaries and giant dielectric responses are related in a relaxorPb(Mg1/3Nb2/3)O3?ferroelectric-PbTiO3 (PMN-xPT) solid-solution system using a compositionally graded crystal, with gradual changes in polarization direction visualized by Raman mapping. The enormous dielectric response observed in PMN-xPT is ascribable to mesoscopic ferroelectric domains composed of polar nano regions that become smaller and slowly fluctuate near the phase boundary, which is characteristic of relaxor?ferroelectric solid-solution systems and differentiates them from other ferroelectrics. |
| 書誌情報 |
Communications Physics
巻 6,
p. 107,
発行日 2023-05
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| 出版者 |
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出版者 |
Springer Nature |
| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
2399-3650 |
| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
10.1038/s42005-023-01219-8 |
