Template-dependent nucleation of metallic droplets

Joanna Millunchick

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joannamm@umich.edu

2014 HH Dow

T: (734) 647-8980

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Denis M Nothern and Joanna M Millunchick (2012)

JOURNAL OF VACUUM SCIENCE \& TECHNOLOGY B, 30(6).

We experimentally investigate the nucleation behavior of metallicgallium droplets deposited on gallium arsenide substrates and calculatethe critical cluster size for various growth conditions and substratetemplating. We find that the critical cluster size for liquid Ga on GaAsis approximately six atoms. Deposition on substrates templated witharrays of holes does not result in significant ordering of the dropletsat the array dimensions studied here, but does result in an apparentreduction of the critical cluster size due to heterogeneous nucleation.(C) 2012 American Vacuum Society.[http://dx.doi.org/10.1116/1.4754563]

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