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

被引：0

作者：

Kadivar, Erfan ^{[1
]}

Darani, Shahram Ahmadi ^{[2
]}

机构：

[1] Shiraz Univ Technol, Dept Phys, Shiraz 71555313, Iran

[2] Islamic Azad Univ, Sci & Res Branch, Dept Phys, Tehran 14665678, Iran

来源：

SURFACE REVIEW AND LETTERS | 2019年 / 26卷 / 04期

关键词：

Wetting transition; Landau-Ginzburg de Gennes theory; nematic droplet; PHASE-TRANSITION;

D O I：

10.1142/S0218625X18501718

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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-dc 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.

引用

页数：7

共 5 条

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Kadivar, Erfan
PHYSICAL REVIEW E, 2009, 80 (01):
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L. V. Mirantsev
A. V. Zakharov
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Physics of the Solid State, 1999, 41 : 306 - 312
[3] Study on the wetting transition of a liquid droplet sitting on a square-array cosine wave-like patterned surface
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JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2014, 418 : 8 - 19
[4] Peripherally Modified Tetraphenylethene: Emerging as a Room-Temperature Luminescent Disc-Like Nematic Liquid Crystal
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Wang, Jia-Hui
Cao, Xiang-Jian
Li, Xiao-Dong
Ren, Xiang-Kui
Yu, Zhen-Qiang
ACS APPLIED MATERIALS & INTERFACES, 2021, 13 (29) : 35207 - 35213
[5] Tricritical-like behavior of the nonlinear optical refraction at the nematic-isotropic transition in the E7 thermotropic liquid crystal
Lenart, V. M.
Gomez, S. L.
Bechtold, I. H.
Figueiredo Neto, A. M.
Salinas, S. R.
EUROPEAN PHYSICAL JOURNAL E, 2012, 35 (01)

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