Nonclassical “Explosive” nucleation in Pb/Si(111) at low temperatures
Abstract
In this study, the onset of nucleation is defined in terms of a critical cluster of the condensed phase, which forms from the gradual aggregation of randomly diffusing adatoms. Experiments in Pb/Si(111) at low temperature have discovered a dramatically different type of nucleation, with perfect crystalline islands emerging “explosively” out of the compressed wetting layer after a critical coverage Θc=1.22 ML is reached. The unexpectedly high island growth rates, the directional correlations in the growth of neighboring islands and the persistence in time of where mass is added in individual islands, suggest that nucleation is a result of the highly coherent motion of the wetting layer, over mesoscopic distances.
- Authors:
-
- Iowa State Univ., Ames, IA (United States)
- Publication Date:
- Research Org.:
- Ames Lab., Ames, IA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1227148
- Alternate Identifier(s):
- OSTI ID: 1180430
- Report Number(s):
- IS-J-8747
Journal ID: ISSN 0031-9007; PRLTAO
- Grant/Contract Number:
- AC02-07CH11358
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 113; Journal Issue: 23; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
Hershberger, M. T., Hupalo, M., Thiel, P. A., Wang, C. Z., Ho, K. M., and Tringides, M. C. Nonclassical “Explosive” nucleation in Pb/Si(111) at low temperatures. United States: N. p., 2014.
Web. doi:10.1103/PhysRevLett.113.236101.
Hershberger, M. T., Hupalo, M., Thiel, P. A., Wang, C. Z., Ho, K. M., & Tringides, M. C. Nonclassical “Explosive” nucleation in Pb/Si(111) at low temperatures. United States. https://doi.org/10.1103/PhysRevLett.113.236101
Hershberger, M. T., Hupalo, M., Thiel, P. A., Wang, C. Z., Ho, K. M., and Tringides, M. C. 2014.
"Nonclassical “Explosive” nucleation in Pb/Si(111) at low temperatures". United States. https://doi.org/10.1103/PhysRevLett.113.236101. https://www.osti.gov/servlets/purl/1227148.
@article{osti_1227148,
title = {Nonclassical “Explosive” nucleation in Pb/Si(111) at low temperatures},
author = {Hershberger, M. T. and Hupalo, M. and Thiel, P. A. and Wang, C. Z. and Ho, K. M. and Tringides, M. C.},
abstractNote = {In this study, the onset of nucleation is defined in terms of a critical cluster of the condensed phase, which forms from the gradual aggregation of randomly diffusing adatoms. Experiments in Pb/Si(111) at low temperature have discovered a dramatically different type of nucleation, with perfect crystalline islands emerging “explosively” out of the compressed wetting layer after a critical coverage Θc=1.22 ML is reached. The unexpectedly high island growth rates, the directional correlations in the growth of neighboring islands and the persistence in time of where mass is added in individual islands, suggest that nucleation is a result of the highly coherent motion of the wetting layer, over mesoscopic distances.},
doi = {10.1103/PhysRevLett.113.236101},
url = {https://www.osti.gov/biblio/1227148},
journal = {Physical Review Letters},
issn = {0031-9007},
number = 23,
volume = 113,
place = {United States},
year = {Wed Dec 03 00:00:00 EST 2014},
month = {Wed Dec 03 00:00:00 EST 2014}
}
Web of Science
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Works referencing / citing this record:
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