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Machine learning-enabled atomistic insights into phase boundary engineering of solid-solution ferroelectrics

delete2025-11-19
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OA
AI
W
Weiru Wen
F
Fanda Zeng
B
Ben Xu
K
Ke Bi *
Z
Zhipeng Xing *
H
Hao‐Cheng Thong *
K
Ke Wang
DOI:10.1038/s41524-025-01829-6delete
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摘要

摘要

En 中文
原子尺度控制相界对于优化固溶体铁电体的功能特性至关重要,但其微观结构机制仍不清楚。在此,我们利用机器学习驱动的分子动力学来解析KNbO3–KTaO3(KNTO)体系中的相界行为。我们的模拟表明,化学成分和有序化能够实现对多型相边界(PPBs)的精确调控,为材料工程提供了一条通用途径。我们的模型预测的弥散PPBs和极性纳米区域与实验高度吻合,突显了机器学习原子模拟的保真度。关键在于,我们识别出铁电KNbO3与顺电KTaO3之间的弹性失配和静电失配是复杂微观结构演化的驱动力。这项工作不仅解决了长期存在的微观结构争议,还为面向下一代高性能铁电体的相界工程建立了一个可推广的框架。
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期刊

npj Computational Materials 封面图
npj Computational Materials
IF:
11.9
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2.4K
被引数:
1.7W

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Graduate School
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462
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S
School of Physical Science and Technology
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364
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被引数: 6
S
School of Materials Science and Engineering
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被引数: 5
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