Novel self-organization mechanism in ultrathin liquid films: Theory and experiment

Justin Trice, Christopher Favazza, Dennis Thomas, Hernando Garcia, Ramki Kalyanaraman, Radhakrishna Sureshkumar

Research output: Contribution to journalArticlepeer-review

79 Scopus citations

Abstract

When an ultrathin metal film of thickness h (<20nm) is melted by a nanosecond pulsed laser, the film temperature is a nonmonotonic function of h and achieves its maximum at a certain thickness h*. This is a consequence of the h and time dependence of energy absorption and heat flow. Linear stability analysis and nonlinear dynamical simulations that incorporate such intrinsic interfacial thermal gradients predict a characteristic pattern length scale Λ that decreases for h>h*, in contrast to the classical spinodal dewetting behavior where Λ increases monotonically as h2. These predictions agree well with experimental observations for Co and Fe films on SiO2.

Original languageEnglish (US)
Article number017802
JournalPhysical Review Letters
Volume101
Issue number1
DOIs
StatePublished - Jul 2 2008
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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