Nucleation Induced Undulative Instability in Thin Films of nCB Liquid Crystals

Details Nucleation Induced Undulative Instability in Thin Films of nCB Liquid Crystals Nucleation Induced Undulative Instability in Thin Films of nCB Liquid Crystals

2001-05-28

arxiv.org/abs/cond-mat/0105536v1

Physics

Condensed Matter

Soft Condensed Matter

4 pages, 5 figures

Scientific paper

10.1209/epl/i2002-00492-x

A surface instability is reported in thin nematic films of 5CB and 8CB, occurring near the nematic--isotropic phase transition. Although this instability leads to patterns reminiscent of spinodal dewetting, we show that it is actually based on a nucleation mechanism. Its characteristic wavelength does not depend markedly on film thickness, but strongly on the heating rate.

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