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Ordering of the Nanoscale Step Morphology As a Mechanism for Droplet Self-Propulsion.

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Author

Summary, in English

We establish a new mechanism for self-propelled motion of droplets, in which ordering of the nanoscale step morphology by sublimation beneath the droplets themselves acts to drive them perpendicular and up the surface steps. The mechanism is demonstrated and explored for Ga droplets on GaP(111)B, using several experimental techniques allowing studies of the structure and dynamics from micrometers to the atomic scale. We argue that the simple assumptions underlying the propulsion mechanism make it relevant for a wide variety of materials systems.

Publishing year

2009

Language

English

Pages

2710-2714

Publication/Series

Nano Letters

Volume

9

Document type

Journal article

Publisher

The American Chemical Society (ACS)

Topic

  • Nano Technology

Status

Published

ISBN/ISSN/Other

  • ISSN: 1530-6992