Volume 53, Number 5, March 2001
|Page(s)||618 - 624|
|Section||Condensed matter: structure, mechanical and thermal properties|
|Published online||01 December 2003|
Wetting of ring-shaped surface domains
Max-Planck-Institut für Kolloid- und
Grenzflächenforschung Am Mühlenberg, 14476 Golm, Germany
2 Lyman Laboratory of Physics, Harvard University - Cambridge, MA 02138, USA
Accepted: 13 December 2000
Wetting of ring-shaped surface domains is studied both theoretically and experimentally. The liquid channels covering these domains exhibit a volume-induced morphological transition from a homogeneous to a bulge state. The continuous symmetry of the low-volume channels is spontaneously broken by the transition to the high-volume regime. Therefore, an angular displacement of the bulge does not cost any (free) energy and the corresponding interface deformation represents a "Goldstone boson"which should be observable for domains in the micrometer regime.
PACS: 68.45.Gd – Wetting / 68.10.Cr – Surface energy (surface tension, interface tension, angle of contact, etc.)
© EDP Sciences, 2001
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