Dewetting of thin films on heterogeneous substrates: Pinning versus coarsening
Publikation: Beitrag in Fachzeitschrift › Forschungsartikel › Beigetragen › Begutachtung
Beitragende
Abstract
We study a model for a thin liquid film dewetting from a periodic heterogeneous substrate (template). The amplitude and periodicity of a striped template heterogeneity necessary to obtain a stable periodic stripe pattern, i.e., pinning, are computed. This requires a stabilization of the longitudinal and transversal modes driving the typical coarsening dynamics during dewetting of a thin film on a homogeneous substrate. If the heterogeneity has a larger spatial period than that of the critical dewetting mode, weak heterogeneities are sufficient for pinning. Our results imply a large region of coexistence between coarsening dynamics and pinning.
Details
Originalsprache | Englisch |
---|---|
Aufsatznummer | 011602 |
Seitenumfang | 5 |
Fachzeitschrift | Physical Review E |
Jahrgang | 66 |
Ausgabenummer | 1 |
Publikationsstatus | Veröffentlicht - Juli 2002 |
Peer-Review-Status | Ja |
Extern publiziert | Ja |
Externe IDs
Scopus | 41349115026 |
---|---|
ORCID | /0000-0003-0137-5106/work/142244237 |
Schlagworte
Schlagwörter
- MORPHOLOGICAL TRANSITIONS, PATTERN-FORMATION, LIQUID-FILMS, NUCLEATION, INSTABILITY, LAYERS