Journal
EPL
Volume 92, Issue 1, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1209/0295-5075/92/16005
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Funding
- French National Research Agency (ANR) [ANR-07-BLAN-0158]
- Agence Nationale de la Recherche (ANR) [ANR-07-BLAN-0158] Funding Source: Agence Nationale de la Recherche (ANR)
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Motivated by recent experimental observations (Delabre U. et al., Langmuir, 24 (2008) 3998), we reconsider an instability of ultrathin nematic films, spread on liquid substrates. Within a continuum elastic theory of liquid crystals, in the harmonic approximation, we find an analytical expressions for the critical thickness as well as for the critical wave number, characterizing the onset of instability towards the stripe phase. Comparing theoretical predictions with experimental observations, we establish the utility of surface-like term such as an azimuthal anchoring. Copyright (C) EPLA, 2010
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