WETTING AND PREWETTING PHENOMENA IN NEMATIC LIQUID CRYSTAL DISK-LIKE DROPLET

Erfan Kadivar and Shahram Ahmadi Darani
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Erfan Kadivar: Department of Physics, Shiraz University of Technology, 71555-313, Shiraz, Iran
Shahram Ahmadi Darani: Department of Physics, Science and Research Branch, Islamic Azad University, 14665-678, Tehran, Iran

Surface Review and Letters (SRL), 2019, vol. 26, issue 04, 1-7

Abstract: We present a theoretical investigation of wetting and prewetting phenomena in a nematic-disk like droplet under a concentric anchoring configuration. Our theoretical model is based on Landau–de Gennes free energy together with a quadratic surface energy. By using the Maxwell construction, we numerically solve the Euler–Lagrange differential equation. The occurrence of boundary layer transition is summarized in the phase diagram scanned by temperature and surface potential. We find that prewetting phenomenon disappear below a critical droplet size and critical temperature.

Keywords: Wetting transition; Landau–Ginzburg de Gennes theory; nematic droplet (search for similar items in EconPapers)
Date: 2019
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DOI: 10.1142/S0218625X18501718

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