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Flexoelectric coefficient measurements in the nematic liquid crystal phase of 5CB
2. P.-G. de Gennes and J. Prost, The Physics of Liquid Crystals, 2nd ed. (Oxford University Press, Oxford, 1993) p. 136.
6. G. P. Bryan-Brown, C. V. Brown, and J. C. Jones, U.S. Patent No. 6249332 (2001).
8. H. J. Coles, M. J. Coles, B. J. Broughton, and S. M. Morris, Patent No. WO/2006/003441 (2006).
13. G. Carbone, P. Salter, S. J. Elston, P. Raynes, L. D. Sio, S. Ferjani, G. Strangi, C. Umeton, and R. Bartolino, Appl. Phys. Lett. 95, 011102 (2009).
20. A. G. Petrov, Physical Properties of Liquid Crystals: Nematics (INSPEC, London, 1998) pp. 251–264.
21. L. A. Beresnev, L. M. Blinov, S. A. Davidyan, S. G. Kononov, and S. B. Yablonskiĭ, Pis'ma Zh. Eksp. Teor. Fiz. 45, 592 (1987).
25. L. M. Blinov, M. Ozaki, and K. Yoshino, Pis'ma Zh. Eksp. Teor. Fiz. 69, 220 (1999).
32. For example, the sign of (e1 + e3) for 5CB is reported as negative in Ref. 22, and positive in Ref. 24.
33. The value of |e3| for a certain bent-core material has been reported as 15.8 pC/m in Ref. 75 and as 62 000 pC/m in Ref. 31. However, this latter value has been shown theoretically to be essentially impossible.76
39. S. V. Yablonskiĭ, L. M. Blinov, and S. A. Pikin, Pis'ma Zh. Eksp. Teor. Fiz. 40, 226 (1984).
46. P. Rudquist, The flexoelectro-optic effect in cholesteric liquid crystals, Ph.D. thesis, Chalmers University of Technology (1997) .
54. S.-E. Lee, S.-K. Lee, H.-S. Jin, W.-H. Park, K. Skjonnemand, D. Wilkes, K. Adlem, P. E. Saxton, and O. L. Parri, Patent No. WO/2011/137986 (2006).
55. Joint Committee for Guides in Metrology, Evaluation of measurement data – Guide to the expression of uncertainty in measurement, 1st ed. (2008).
56. F. Castles, Highly flexoelectric liquid crystals, Ph.D. thesis, University of Cambridge (2010) .
58. The calculation required a value of the twist elastic constant, for which K2 = 3.3 pN was used (at a reduced temperature of ≈0.98 to be consistent with our other input values) from Ref. 61: although the essential result is not particularly sensitive to the exact value of K2 used.
61. H. J. Coles and M. S. Sefton, Mol. Cryst. Liq. Cryst. Lett. 1, 151 (1985).
62. H. J. Coles and A. I. Hopwood, Mol. Cryst. Liq. Cryst. Lett. 1, 165 (1985).
66. I. W. Stewart, The Static and Dynamic Continuum Theory of Liquid Crystals (Taylor & Francis, London, 2004) p. 72.
68. F. Grandjean, C. R. Acad. Sci. 172, 71 (1921).
69. R. Cano, Bull. Soc. fr. Minéral. Cristallogr. 90, 333 (1967).
71. The temperature as determined by the readout of the hot-stage controller is precise (to the nearest 0.01°C), but not necessarily accurate. However, the value of Tc as determined using a hot-stage and hot-stage controller with a Fréedericksz cell was 35.51 °C, which supports the supplier's value.
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We report measurements of the bulk flexoelectric coefficient (e 1 − e 3) of 5CB (4-Cyano-4′-pentylbiphenyl), in the temperature range 20–34 °C, with a relative combined standard uncertainty of 2 %. The chiral flexoelectro-optic method was used with 1 wt % high-twisting-power chiral additive. At 25 °C, (e 1 − e 3) = 7.10 pC/m with a combined standard uncertainty of 0.14 pC/m.
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