Breaking the wire: the impact of critical length on melting pathways in silver nanowires
We explore the melting mechanisms of silver nanowires through molecular dynamics simulations and theoretical modelling, where we observe that two distinct mechanisms or pathways emerge that dictate how the solid-liquid interface melts during the phase transition. For wires longer than a critical len...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2025-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/adb08e |
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| author | K M Ridings E E L Vaka’uta S M Croot |
| author_facet | K M Ridings E E L Vaka’uta S M Croot |
| author_sort | K M Ridings |
| collection | DOAJ |
| description | We explore the melting mechanisms of silver nanowires through molecular dynamics simulations and theoretical modelling, where we observe that two distinct mechanisms or pathways emerge that dictate how the solid-liquid interface melts during the phase transition. For wires longer than a critical length ( L > L _crit ), an Arrhenius-type diffusion model successfully predicts the solid-liquid interface velocity, highlighting diffusion-driven melting pathways. In contrast, wires shorter than the critical length ( L ≤ L _crit ) exhibit unique behaviours driven by non-equilibrium effects, including rapid overheating of the solid core, stabilization of the solid-liquid interface, and the pronounced impact of higher energy densities. These mechanisms lead to accelerated melting and distinct phase transition dynamics. Our findings reveal how geometry and nanoscale effects critically shape melting behaviour, offering insights for the design and stability of nanostructures in advanced applications. |
| format | Article |
| id | doaj-art-ab45287ab4b74726ab5a67110e8cd8a1 |
| institution | Kabale University |
| issn | 2053-1591 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj-art-ab45287ab4b74726ab5a67110e8cd8a12025-02-11T14:15:09ZengIOP PublishingMaterials Research Express2053-15912025-01-0112202500210.1088/2053-1591/adb08eBreaking the wire: the impact of critical length on melting pathways in silver nanowiresK M Ridings0https://orcid.org/0000-0002-8801-4428E E L Vaka’uta1S M Croot2The MacDiarmid Institute for Advanced Materials and Nanotechnology, Department of Physics, The University of Auckland, New Zealand; Department of Physics, University of Auckland , Private Bag 92019, Auckland, New ZealandDepartment of Physics, University of Auckland , Private Bag 92019, Auckland, New ZealandDepartment of Physics, University of Auckland , Private Bag 92019, Auckland, New ZealandWe explore the melting mechanisms of silver nanowires through molecular dynamics simulations and theoretical modelling, where we observe that two distinct mechanisms or pathways emerge that dictate how the solid-liquid interface melts during the phase transition. For wires longer than a critical length ( L > L _crit ), an Arrhenius-type diffusion model successfully predicts the solid-liquid interface velocity, highlighting diffusion-driven melting pathways. In contrast, wires shorter than the critical length ( L ≤ L _crit ) exhibit unique behaviours driven by non-equilibrium effects, including rapid overheating of the solid core, stabilization of the solid-liquid interface, and the pronounced impact of higher energy densities. These mechanisms lead to accelerated melting and distinct phase transition dynamics. Our findings reveal how geometry and nanoscale effects critically shape melting behaviour, offering insights for the design and stability of nanostructures in advanced applications.https://doi.org/10.1088/2053-1591/adb08emelting modesAg nanowiresmolecular dynamics simulationinterface velocityarrhenius diffusionenergy density |
| spellingShingle | K M Ridings E E L Vaka’uta S M Croot Breaking the wire: the impact of critical length on melting pathways in silver nanowires Materials Research Express melting modes Ag nanowires molecular dynamics simulation interface velocity arrhenius diffusion energy density |
| title | Breaking the wire: the impact of critical length on melting pathways in silver nanowires |
| title_full | Breaking the wire: the impact of critical length on melting pathways in silver nanowires |
| title_fullStr | Breaking the wire: the impact of critical length on melting pathways in silver nanowires |
| title_full_unstemmed | Breaking the wire: the impact of critical length on melting pathways in silver nanowires |
| title_short | Breaking the wire: the impact of critical length on melting pathways in silver nanowires |
| title_sort | breaking the wire the impact of critical length on melting pathways in silver nanowires |
| topic | melting modes Ag nanowires molecular dynamics simulation interface velocity arrhenius diffusion energy density |
| url | https://doi.org/10.1088/2053-1591/adb08e |
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