Issue
EPL
Volume 86, Number 4, May 2009
Article Number 46004
Number of page(s) 6
Section Condensed Matter: Structural, Mechanical and Thermal Properties
DOI http://dx.doi.org/10.1209/0295-5075/86/46004
Published online 26 May 2009
EPL, 86 (2009) 46004
DOI: 10.1209/0295-5075/86/46004

Wetting of solid islands on parallel nano-grooves

O. Pierre-Louis1, 2 and Y. Saito3

1   Rudolf Peierls Center for Theoretical Physics, Oxford University - 1 Keble Road, OX1 3NP Oxford, UK, EU
2   Laboratoire de Spectrométrie Physique, Université Joseph Fourier and CNRS - 140 Avenue de la Physique, 38402 Saint Martin D'Hères, France, EU
3   Keio University - 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, Kanagawa, 223-8522 Japan

olivier.pierre-louis@ujf-grenoble.fr

received 27 February 2009; accepted in final form 27 April 2009; published May 2009
published online 26 May 2009

Abstract
We analyze the wetting behavior of a solid adsorbate island on a substrate with parallel grooves. The island is found in three main states, with different shapes and positions: a lifted Cassie-Baxter–like state, a collapsed Wenzel-like state, and a capillary filling state. The stability of these states is summarized in a two-loop–hysteresis diagram. Quantitative agreement is found between kinetic Monte Carlo simulations and a simple analytical model.

PACS
61.46.-w - Structure of nanoscale materials.
68.65.Hb - Quantum dots (patterned in quantum wells).
81.10.Aj - Theory and models of crystal growth; physics of crystal growth, crystal morphology, and orientation.

© EPLA 2009