The kinetics and modes of gold nanowire breaking
Chang Q. Sun
TL;DR
This study uses molecular dynamics to explore how temperature and tensile force influence the breaking behavior of gold nanowires, revealing different modes and kinetics of rupture.
Contribution
It provides new insights into the relationship between force, temperature, and breaking mechanisms of gold nanowires through detailed simulations.
Findings
Structure transformation occurs before breaking at certain forces.
Abrupt breaking happens at forces above 0.1 nN/atom.
No rupture occurs below 0.018 nN/atom.
Abstract
Molecular dynamics calculations revealed that the temperature of operation and the applied tensile force (f) determine not only the kinetics but also the mode and duration of Au nanowire breaking. In the tensile force range of 0.018 and 0.1 nN/atom, structure transformation of the wire occurs prior to breaking at random positions. The gold wire breaks abruptly when the f is stronger than 0.1nN/atom but no rupture occurs at all when the f is weaker than 0.018 nN/atom. At higher temperatures and under stronger tensile forces, the wire breaks even faster.
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Taxonomy
TopicsAdvancements in Semiconductor Devices and Circuit Design · Integrated Circuits and Semiconductor Failure Analysis · Surface and Thin Film Phenomena