| Issue |
EPL
Volume 96, Number 4, November 2011
|
|
|---|---|---|
| Article Number | 46005 | |
| Number of page(s) | 6 | |
| Section | Condensed Matter: Structural, Mechanical and Thermal Properties | |
| DOI | https://doi.org/10.1209/0295-5075/96/46005 | |
| Published online | 11 November 2011 | |
Power-law scaling of dynamical and structural signatures in liquid metallic nano-film
1
Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, Shandong University - Jinan 250061, China
2
Department of Building and Construction, City University of Hong Kong - Kowloon, Hong Kong
Received:
11
August
2011
Accepted:
6
October
2011
Structural and dynamical features of a liquid metallic nano-film during cooling are investigated by molecular dynamics simulations. Several unique structural transformations from liquid to nano-crystalline or glass are observed. Moreover, the crystalline fraction change and motion propensity are discussed in detail. Results indicate a close relation between the local structural ordering and the dynamic signature. We use a new parameter P(a,τ,ν) as an effective indicator for predicting both local structural order and motion propensity in a metallic nano-film, and find that the fraction of crystalline clusters follows a negative power-law scaling with the cooling rate increasing, which is the inverse of P(a,τ,ν).
PACS: 61.20.Ja – Computer simulation of liquid structure / 61.20.Gy – Theory and models of liquid structure
© EPLA, 2011
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