| CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES |
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Influences of surface and flexoelectric polarization on the effective anchoring energy in nematic liquid crystal |
| Guan Rong-Huaa, Ye Wen-Jiangb, Xing Hong-Yub |
a School of Sciences, North China Electric Power University, Baoding 071003, China;
b School of Sciences, Hebei University of Technology, Tianjin 300401, China |
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Abstract The physical effects on surface and flexoelectric polarization in a weak anchoring nematic liquid crystal cell are investigated systematically. We derive the analytic expressions of two effective anchoring energies for lower and upper substrates respectively as well as their effective anchoring strengths and corresponding tilt angles of effective easy direction. All of these quantities are relevant to the magnitudes of both two polarizations and the applied voltage U. Based on these expressions, the variations of effective anchoring strength and the tilt angle with the applied voltage are calculated for the fixed values of two polarizations. For an original weak anchoring hybrid aligned nematic cell, it may be equivalent to a planar cell for a small value of U and has a threshold voltage. The variation of reduced threshold voltage with reduced surface polarization strength is also calculated. The role of surface polarization is important without the adsorptive ions considered.
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Received: 28 March 2015
Revised: 25 May 2015
Published: 05 October 2015
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PACS:
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61.30.Gd
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(Orientational order of liquid crystals; electric and magnetic field effects on order)
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42.79.Kr
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(Display devices, liquid-crystal devices)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11274088, 11374087, and11304074), the Natural Science Foundation of Hebei Province, China (Grant No. A2014202123), the Research Project of Hebei Provincial Education Department, China (Grant No. QN2014130), and the Key Subject Construction Project of Hebei Provincial University, China. |
Corresponding Authors:
Guan Rong-Hua, Ye Wen-Jiang
E-mail: ronghua_guan@163.com;wenjiang_ye@hebut.edu.cn
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Cite this article:
Guan Rong-Hua, Ye Wen-Jiang, Xing Hong-Yu Influences of surface and flexoelectric polarization on the effective anchoring energy in nematic liquid crystal 2015 Chin. Phys. B 24 106102
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| [1] |
De Gennes P G and Prost J 1993 The Physics of Liquid Crystals (Oxford: Oxford University Press) p. 108
|
| [2] |
Sonin A A 1995 The Surface Physics of Liquid Crystals (New York: Gordon and Breach Press) p. 50
|
| [3] |
Jerome B 1991 Rep. Prog. Phys. 54 391
|
| [4] |
Yang G C, Zhang S J, Han L J and Guan R H 2004 Liq. Cryst. 31 1093
|
| [5] |
Nazarenko V G and Lavrentovich O D 1994 Phys. Rev. E 49 990
|
| [6] |
Zakharov A V and Dong R Y 2001 Phys. Rev. E 64 042701
|
| [7] |
Yang G C, Guan R H and An H L 2003 Liq. Cryst. 30 997
|
| [8] |
Barbero G and Durand G 1990 J. Appl. Phys. 67 2678
|
| [9] |
Alexe-Ionescu A L, Barbero G and Petrov A G 1993 Phys. Rev. E 48 R1631
|
| [10] |
Roland Meister and Blandine 1999 J. Appl. Phys. 86 2473
|
| [11] |
Barbero G, Olivero D, Scaramuzza N, Strangi G and Versace C 2004 Phys. Rev. E 69 021713
|
| [12] |
Liu J W, Zhang S H and Yang G C 2007 Liq. Cryst. 34 1425
|
| [13] |
Guan R H 2010 Key Engineering Materials 428-429 251
|
| [14] |
Guan R H 2011 Acta Phys. Sin. 60 016105(in Chinese)
|
| [15] |
Meyer R B 1969 Phys. Rev. Lett. 22 918
|
| [16] |
Petrov A G and Derzhanski A 1977 Mol. Cryst. Liq. Cryst. 41 41
|
| [17] |
Barbero G, Dozov I, Palierne J F and Durand G 1986 Phys. Rev. Lett. 56 2056
|
| [18] |
Ye W J, Xing H Y, Yang G C and Yuan M Y 2009 Chin. Phys. B 18 238
|
| [19] |
Rapini A and Papoular M 1969 J. Phys. (Paris) Colloq. 30 C4-54
|
| [20] |
Harden J, Mbanga B, Éber N, Fodor-Csorba., Sprunt S, Gleeson J T and Jákli A 2006 Phys. Rev. Lett. 97 157802
|
| [21] |
Salter P S, Tschierske C, Elston S J and Raynes E P 2011 Phys. Rev. E 84 031708
|
| [22] |
Outrama B I and Elstona S J 2012 Liq. Cryst. 39 149
|
| [23] |
Xing H Y, Ye W J, Cai M L, Liu X M, Zhang Z D and Xuan L 2015 Acta Opt. Sin. 35 0323002(in Chinese)
|
| [24] |
Ye W J, Xing H Y, Cui W J, Zhou X Sun Y B and Zhang Z D 2014 Chin. Phys. B 23 116101
|
| [25] |
Castles F, Morris S M and Coles H J 2011 AIP Adv. 1 032120
|
| [26] |
Castles F, Morris S M and Coles H J 2013 AIP Adv. 3 019102
|
| [27] |
Blinov L M, Barnik M I, Ozaki M. Shtykov N M and Yoshino K 2000 Phys. Rev. E 62 8091
|
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