DOI: 10.1063/1.2779875. A limit of stability in supercooled liquid clusters

A limit of stability in supercooled liquid clusters

10.1063/1.2779875

Crossref journal-article

AIP Publishing

The Journal of Chemical Physics (317)

Abstract

We examine the metastable liquid phase of a supercooled gold nanocluster by studying the free energy landscape using the largest solidlike embryo as an order parameter. Just below freezing, the free energy exhibits a local minimum at small embryo sizes and a maximum at a larger critical embryo size. At T=660K the free energy becomes a monotonically decreasing function of the order parameter as the liquid phase becomes unstable, indicating that we have reached a limit of stability. In contrast to the mean-field theory predictions for a spinodal, the size of the critical embryo remains finite as the limit of stability is approached. We also calculate the rate of nucleation, independently from our free energy calculations, and observe a rapid increase in its temperature dependence when the free energy barrier is on the order of kT. We suggest that this supports the idea that freezing becomes a barrierless process at low temperatures.

Bibliography

Mendez-Villuendas, E., Saika-Voivod, I., & Bowles, R. K. (2007). A limit of stability in supercooled liquid clusters. The Journal of Chemical Physics, 127(15).

Authors 3

Eduardo Mendez-Villuendas (first)
Ivan Saika-Voivod (additional)
Richard K. Bowles (additional)

References 24 Referenced 16

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Dates

Type	When
Created	17 years, 10 months ago (Oct. 16, 2007, 6:09 p.m.)
Deposited	2 years, 1 month ago (July 31, 2023, 4:55 p.m.)
Indexed	1 month ago (July 30, 2025, 6:49 a.m.)
Issued	17 years, 10 months ago (Oct. 16, 2007)
Published	17 years, 10 months ago (Oct. 16, 2007)
Published Online	17 years, 10 months ago (Oct. 16, 2007)
Published Print	17 years, 10 months ago (Oct. 21, 2007)

Funders 0

None

BibTeX

@article{Mendez_Villuendas_2007, title={A limit of stability in supercooled liquid clusters}, volume={127}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.2779875}, DOI={10.1063/1.2779875}, number={15}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Mendez-Villuendas, Eduardo and Saika-Voivod, Ivan and Bowles, Richard K.}, year={2007}, month=oct }

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