Behavior of strain stripe networks in barium titanate nanocrystals on crossing its ferroelectric phase transition
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Bibliographic record
Abstract
Nanoscale strain networks are reported in <a:math xmlns:a="http://www.w3.org/1998/Math/MathML"><a:mrow><a:mi>BaTi</a:mi><a:msub><a:mi mathvariant="normal">O</a:mi><a:mn>3</a:mn></a:msub></a:mrow></a:math> (BTO) crystals of 300 nm size using Bragg coherent diffractive imaging. BTO nanocrystals with clear facets were chosen to identify the crystallographic directions, allowing the strain field direction and periodicity to be studied in detail. Stripes of strain were observed, which were both stable and preserved in tetragonal and cubic phases at elevated temperatures, above the tetragonal-to-cubic phase transition. A finite element analysis approach was used to simulate the domain structures inside a BTO crystal and to understand the origins of the strain stripes as piezoelectric blocks. A <c:math xmlns:c="http://www.w3.org/1998/Math/MathML"><c:msup><c:mn>180</c:mn><c:mo>∘</c:mo></c:msup></c:math> domain model gives a better qualitative match to the experimental images. Published by the American Physical Society 2024
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Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
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