表面电迁移增强的形态不稳定性导致纳米线断裂

IF 1.9 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Modelling and Simulation in Materials Science and Engineering Pub Date : 2023-11-10 DOI:10.1088/1361-651x/ad0b8b

Mikhail Khenner

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引用次数: 0

摘要

摘要利用最近建立的轴向电场作用下单晶纳米线形态演化的连续介质模型，计算了微观粗糙纳米线表面的轴对称演化。形态进化导致金属丝分裂成圆柱形的片段(颗粒)。在径向和轴向表面粗糙度不同的情况下，破碎时间和颗粒数量也不同。结果表明，电迁移和较大的表面粗糙度导致破碎时间缩短和颗粒数量增加。

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Nanowire Breakup via a Morphological Instability Enhanced by Surface Electromigration

Abstract Using a recent continuum model of a single-crystal nanowire morphological evolution in the applied axial electric ﬁeld, an axisymmetric evolution of a microscopically rough nanowire surface is computed. Morphological evolution results in a wire breakup into a cylindrical segments (particles). Breakup time and the number of particles are characterized for various levels of the radial and axial surface roughness. It is shown that electromigration and larger surface roughness lead to a shorter breakup time and the increased number of particles.

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来源期刊

Modelling and Simulation in Materials Science and Engineering 工程技术-材料科学：综合

CiteScore

3.30

自引率

5.60%

发文量

审稿时长

1.7 months

期刊介绍： Serving the multidisciplinary materials community, the journal aims to publish new research work that advances the understanding and prediction of material behaviour at scales from atomistic to macroscopic through modelling and simulation. Subject coverage: Modelling and/or simulation across materials science that emphasizes fundamental materials issues advancing the understanding and prediction of material behaviour. Interdisciplinary research that tackles challenging and complex materials problems where the governing phenomena may span different scales of materials behaviour, with an emphasis on the development of quantitative approaches to explain and predict experimental observations. Material processing that advances the fundamental materials science and engineering underpinning the connection between processing and properties. Covering all classes of materials, and mechanical, microstructural, electronic, chemical, biological, and optical properties.