Order-induced period doubling during surface-directed spinodal decomposition

G. Krausch, J. Mlynek, W. Straub, R. Brenn, J. F. Marko

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

We present first experimental evidence for period doubling as an alternative mode of coarsening during surface-directed spinodal decomposition in a binary mixture. The system under consideration is a symmetric blend of deuterated polystyrene (dPS) and partially brominated polystyrene (PBrxS). We compare the surface domain coarsening of a thin film of a critical mixture with that of a multilayered structure of near-binodal compositions. While the former is found to coarsen monotonically via diffusion, leading to self-similar composition vs. depth profiles, the latter grows by dissolution of one of the layers feeding the adjacent domains of the respective phase. The results compare well with cell-dynamical simulations.

Original languageEnglish (US)
Pages (from-to)323-328
Number of pages6
JournalEPL
Volume28
Issue number5
DOIs
StatePublished - Nov 10 1994

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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