Flexoelectric Effect in Biaxial Nematics

• Authors: A. Kapanowski
• Languages of publication: EN

Abstracts

EN

The flexoelectric effect provides a linear coupling between electric polarization and orientational deformation in liquid crystals. It influences many electrooptical phenomena and it is used in some bistable nematic devices. A statistical theory of dipole flexoelectric polarization in biaxial nematic liquid crystals is used to calculate temperature dependence of order parameters, elastic constants, and flexoelectric coefficients. The splitting of the two Meyer flexoelectric coefficients and the appearance of new flexoelectric coefficients is obtained at the uniaxial-biaxial nematic transition. The ordering of the split flexoelectric coefficients corresponds to the ordering of the split elastic constants.

Keywords

EN

61.30.Cz; 77.84.Nh

Discipline

• 61.30.Cz: Molecular and microscopic models and theories of liquid crystal structure
• 77.84.Nh: Liquids, emulsions, and suspensions; liquid crystals(for structure of liquid crystals, see 61.30.-v)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2012
• Volume: 122
• Issue: 1
• Pages: 146-151

Dates

published

2012-07

received

2012-01-13

(unknown)

2012-03-23

Contributors

author

A. Kapanowski

• Marian Smoluchowski Institute of Physics, Jagiellonian University, W.S. Reymonta 4, 30-059 Cracow, Poland

References

• 1. M.J. Freiser, Phys. Rev. Lett. 24, 1041 (1970)
• 2. L.J. Yu, A. Saupe, Phys. Rev. Lett. 45, 1000 (1980)
• 3. K. Severing, K. Saalwachter, Phys. Rev. Lett. 92, 125501 (2004)
• 4. L.A. Madsen, T.J. Dingemans, M. Nakata, E.T. Samulski, Phys. Rev. Lett. 92, 145505 (2004)
• 5. B.R. Acharya, A. Primak, S. Kumar, Phys. Rev. Lett. 92, 145506 (2004)
• 6. K. Merkel, A. Kocot, J.K. Vij, R. Korlacki, G.H. Mehl, T. Meyer, Phys. Rev. Lett. 93, 237801 (2004)
• 7. L. Longa, P. Grzybowski, S. Romano, E. Virga, Phys. Rev. E 71, 051714 (2005)
• 8. R. Berardi, L. Muccioli, S. Orlandi, M. Ricci, C. Zannoni, J. Phys., Condens. Matter 20, 463101 (2008)
• 9. L. Longa, G. Pająk, T. Wydro, Phys. Rev. E 76, 011703 (2007)
• 10. R.B. Meyer, Phys. Rev. Lett. 22, 918 (1969)
• 11. J. Prost, J.P. Marcerou, J. Phys. (Paris) 38, 315 (1977)
• 12. A. Kapanowski, Phys. Rev. E 77, 052702 (2008)
• 13. C. Denniston, J.M. Yeomans, Phys. Rev. Lett. 87, 275505 (2001)
• 14. A.J. Davidson, N.J. Mottram, Phys. Rev. E 65, 051710 (2002)
• 15. L.A. Parry-Jones, R.B. Meyer, S.J. Elston, J. Appl. Phys. 106, 014510 (2009)
• 16. J.S. Patel, R.B. Meyer, Phys. Rev. Lett. 58, 1538 (1987)
• 17. A.E. Blatch, M.J. Coles, B. Musgrave, H.J. Coles, Mol. Cryst. Liq. Cryst. 401, 161 (2003)
• 18. F. Castles, S.M. Morris, H.J. Coles, Phys. Rev. E 80, 031709 (2009)
• 19. M. Cepic, B. Zeks, Phys. Rev. Lett. 87, 085501 (2001)
• 20. F. Castles, S.M. Morris, E.M. Terentjev, H.J. Coles, Phys. Rev. Lett. 104, 157801 (2010)
• 21. G. Barbero, I. Dozov, J.F. Palierne, G. Durand, Phys. Rev. Lett. 56, 2056 (1986)
• 22. T. Porenta, M. Ravnik, S. Zumer, Soft Matter 7, 132 (2011)
• 23. A. Kapanowski, Phys. Rev. E 55, 7090 (1997)
• 24. M. Fiałkowski, A. Kapanowski, K. Sokalski, Mol. Cryst. Liq. Cryst. 265, 371 (1995)
• 25. R. Rosso, Liq. Cryst. 34, 737 (2007)
• 26. P.J. Camp, M.P. Allen, J. Chem. Phys. 106, 6681 (1997)
• 27. S. Stallinga, G. Vertogen, Phys. Rev. E 49, 1483 (1994)
• 28. A. Kapanowski, Opto-Electron. Rev. 16, 9 (2008)
• 29. A.G. Petrov, in: Physical Properties of Liquid Crystals: Nematics, Eds. D. Dunmur, A. Fukuda, G.L. Luckhurst, INSPEC, The Institution of Electrical Engineers, London 2001
• 30. I. Dozov, P. Martinot-Lagarde, G. Durand, J. Phys. Lett. 43, 365 (1982)
• 31. R.A. Ewings, C. Kischka, L.A. Parry-Jones, S.J. Elston, Phys. Rev. E 73, 011713 (2006)
• 32. E.K. Tidey, L.A. Parry-Jones, S.J. Elston, Liq. Cryst. 34, 251 (2007)
• 33. B.I. Outram, S.J. Elston, Liq. Cryst. 39, 149 (2012)
• 34. J. Pelaez, M. Wilson, Phys. Chem. Chem. Phys. 9, 2968 (2007)

Identifiers

DOI

10.12693/APhysPolA.122.146