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用于单晶薄膜局部结构研究的超高角度掠入射高能漫散射X射线散射

High-energy diffuse X-ray scattering at ultra-small-angle grazing incidence for local structure study of single-crystalline thin films.

作者信息

Bang Joohee, Strkalj Nives, Sarott Martin F, Kholina Yevheniia, Trassin Morgan, Weber Thomas

机构信息

ETH Zürich, Laboratory of Multifunctional Ferroic Materials, Vladimir-Prelog-Weg 1-5/10, 8093 Zürich, Switzerland.

Center for Advanced Laser Techniques, Institute of Physics, Bijenička Cesta 46, 10000 Zagreb, Croatia.

出版信息

J Appl Crystallogr. 2025 Jul 29;58(Pt 4):1417-1427. doi: 10.1107/S1600576725005837. eCollection 2025 Aug 1.

DOI:10.1107/S1600576725005837
PMID:40765974
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12321022/
Abstract

We present a novel experimental approach employing high-energy X-ray scattering in ultra-small-angle grazing-incidence geometry to investigate local atomic structures in single-crystalline thin films. This non-destructive and non-invasive method overcomes the limitations of conventional moderate-energy grazing-incidence diffraction, achieving both high reciprocal-space resolution and coverage and high surface sensitivity. By leveraging high-energy X-ray diffraction, we enable quantitative analysis of local structures in the model system of ferroelectric PbTiO and dielectric SrTiO superlattices through three-dimensional difference pair distribution function analysis. The approach provides detailed insights into atomic structures in single-crystalline thin films with local order, capturing information on spatial correlations within and across unit cells.

摘要

我们提出了一种新颖的实验方法，该方法采用超小角掠入射几何结构中的高能X射线散射来研究单晶薄膜中的局部原子结构。这种无损且非侵入性的方法克服了传统中能掠入射衍射的局限性，实现了高倒易空间分辨率、覆盖范围以及高表面灵敏度。通过利用高能X射线衍射，我们能够通过三维差分对分布函数分析，对铁电PbTiO和介电SrTiO超晶格的模型系统中的局部结构进行定量分析。该方法提供了对具有局部有序性的单晶薄膜中原子结构的详细见解，获取了关于晶胞内部和跨晶胞的空间相关性信息。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cb/12321022/9eec81ddffd7/j-58-01417-fig10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cb/12321022/c00f72384c4d/j-58-01417-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cb/12321022/51d5b3e2c83a/j-58-01417-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cb/12321022/c0de0806429d/j-58-01417-fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cb/12321022/0b2fecc51cae/j-58-01417-fig4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cb/12321022/69019d4f832d/j-58-01417-fig5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cb/12321022/cf6d40a5a831/j-58-01417-fig6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cb/12321022/aab0c2248998/j-58-01417-fig7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cb/12321022/a577c99794b6/j-58-01417-fig8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cb/12321022/ff23211313f3/j-58-01417-fig9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cb/12321022/9eec81ddffd7/j-58-01417-fig10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cb/12321022/c00f72384c4d/j-58-01417-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cb/12321022/51d5b3e2c83a/j-58-01417-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cb/12321022/c0de0806429d/j-58-01417-fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cb/12321022/0b2fecc51cae/j-58-01417-fig4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cb/12321022/69019d4f832d/j-58-01417-fig5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cb/12321022/cf6d40a5a831/j-58-01417-fig6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cb/12321022/aab0c2248998/j-58-01417-fig7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cb/12321022/a577c99794b6/j-58-01417-fig8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cb/12321022/ff23211313f3/j-58-01417-fig9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cb/12321022/9eec81ddffd7/j-58-01417-fig10.jpg

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本文引用的文献

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Engineering polar vortex from topologically trivial domain architecture.从拓扑平凡域结构构建极涡旋。
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