Nematic twist-bend phase with nanoscale modulation of molecular orientation

Nature Communications

Volumn 4, Issue , 2013, Pages

  Borshch, V ^a   Kim, Y K ^a   Xiang, J ^a   Gao, M ^a   Jakli A ^a   Panov, V P ^b   Vij, J K ^b   Imrie, C T ^c   Tamba, M G ^d   Mehl, G H ^d   Lavrentovich, O D ^a  

^a KENT STATE UNIVERSITY   (United States)

^b TRINITY COLLEGE DUBLIN   (Ireland)

^c UNIVERSITY OF ABERDEEN   (United Kingdom)

^d UNIVERSITY OF HULL   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

MOLECULAR ANALYSIS; NANOTECHNOLOGY;

ALTERNATING CURRENT; ARTICLE; ELECTRIC FIELD; LIQUID CRYSTAL; MICROSCOPY; MOLECULE; NEMATIC LIQUID CRYSTAL; TEMPERATURE DEPENDENCE; TRANSMISSION ELECTRON MICROSCOPY;

HELICOIDEA;

EID: 84889608403     PISSN: None     EISSN: 20411723     Source Type: Journal    
DOI: 10.1038/ncomms3635     Document Type: Article

References (35)

1. Meyer, R. B. in Molecular Fluids. Les Houches Lectures, 1973. (eds Balian, R. & Weill, G.) 271-343 (Gordon and Breach, 1976).
2. Dozov, I. On the spontaneous symmetry breaking in the mesophases of achiral banana-shaped molecules. Europhys. Lett. 56, 247-253 (2001).
3. Shamid, S. M., Dhakal, S. & Selinger, J. V. Statistical mechanics of bend flexoelectricity and the twist-bend phase in bent-core liquid crystals. Phys. Rev. E 87, 052503 (2013).
4. Memmer, R. Liquid crystal phases of achiral banana-shaped molecules: a computer simulation study. Liq. Cryst. 29, 483-496 (2002).
5. Kamien, R. D. Liquids with chiral bond order. J. Phys. II France 6, 461-475 (1996). (Pubitemid 126794388)
6. Ja?kli, A. Liquid crystals of the twenty-first century-nematic phase of bent-core molecules. Liq. Cryst. Rev. 1, 65-82 (2013).
7. Ungar, G., Percec, V. & Zuber, M. Liquid crystalline polyethers based on conformational isomerism. 20. Nematic-nematic transition in polyethers and copolyethers based on 1-(4-hydroxyphenyl)2-(2-R-4-hydroxyphenyl)ethane with R1/4fluoro, chloro and methyl and flexible spacers containing an odd number of methylene units. Macromolecules 25, 75-80 (1992).
8. Silvestri, R. L. & Koenig, J. L. Spectroscopic characterization of trans-gauche isomerization in liquid crystal polymers with two nematic states. Polymer 35, 2528-2537 (1994).
9. Sepelj, M. et al. Intercalated liquid-crystalline phases formed by symmetric dimers with an a,o-diiminoalkylene spacer. J. Mater. Chem. 17, 1154-1165 (2007). (Pubitemid 46412178)
10. Henderson, P. A. & Imrie, C. T. Methylene-linked liquid crystal dimers and the twist-bend nematic phase. Liq. Cryst. 38, 1407-1414 (2011).
11. Panov, V. P. et al. Spontaneous periodic deformations in nonchiral planaraligned bimesogens with a nematic-nematic transition and a negative elastic constant. Phys. Rev. Lett. 105, 167801 (2010).
12. Panov, V. P. et al. Field-induced periodic chiral pattern in the Nx phase of achiral bimesogens. Appl. Phys. Lett. 101, 234106 (2012).
13. Cestari, M., Frezza, E., Ferrarini, A. & Luckhurst, G. R. Crucial role of molecular curvature for the bend elastic and flexoelectric properties of liquid crystals: mesogenic dimers as a case study. J. Mater. Chem. 21, 12303-12308 (2011).
14. Cestari, M. et al. Phase behavior and properties of the liquid-crystal dimer 10 0,70 0-bis(4-cyanobiphenyl-40-yl) heptane: a twist-bend nematic liquid crystal. Phys. Rev. E 84, 031704 (2011).
15. Beguin, L. et al. The chirality of a twist-bend nematic phase identified by NMR spectroscopy. J. Phys. Chem. B 116, 7940-7951 (2012).
16. Imrie, C. T. & Henderson, P. A. Liquid crystal dimers and higher oligomers: between monomers and polymers. Chem. Soc. Rev. 36, 2096-2124 (2007).
17. Panov, V. P. et al. Microsecond linear optical response in the unusual nematic phase of achiral bimesogens. Appl. Phys. Lett. 99, 261903 (2011).
18. Meyer, C., Luckhurst, G. R. & Dozov, I. Flexoelectrically driven electroclinic effect in the twist-bend nematic phase of achiral molecules with bent shapes. Phys. Rev. Lett. 111, 067801 (2013).
19. Chen, D. et al. A twist-bend chiral helix of 8 nm pitch in a nematic liquid crystal of achiral molecular dimers. Preprint at http://arXiv.org/abs/ 1306.5504 (2013).
20. Adlem, K. et al. Chemically induced twist-bend nematic liquid crystals, liquid crystal dimers, and negative elastic constants. Phys. Rev. E 88, 022503 (2013).
21. Friedel, M. G. Les e?tats me?somorphes de la matiere (The mesomorphic states of matter).Ann. Phys. 18, 273-474 (1922).
22. Kleman, M. & Lavrentovich, O. D. Soft Matter Physics: An Introduction (Springer, 2003).
23. Bouligand, Y., Soyer, M.-O. & Puiseux-Dao, S. La structure fibrillaire et l'orientation des chromosomes chez les Dinoflagelle?s. Chromosoma 24, 251-287 (1968).
24. Barnes, P. J., Douglass, A. G., Heeks, S. K. & Luckhurst, G. R. An enhanced odd-even effect of liquid crystal dimers orientational order in the a,o-bis(40- cyanobiphenyl-4-yl)alkanes. Liq. Cryst. 13, 603-613 (1993).
25. Balachandran, R. et al. Elastic properties of bimesogenic liquid crystals. Liq. Cryst. 40, 681-688 (2013).
26. Deuling, H. J. Deformation of nematic liquid crystals in an electric field. Mol. Cryst. Liq. Cryst. 19, 123-131 (1972).
27. Zhou, S. et al. Elasticity of lyotropic chromonic liquid crystals probed by director reorientation in a magnetic field. Phys. Rev. Lett. 109, 037801 (2012).
28. de Gennes, P. G. & Prost, J. The Physics of Liquid Crystals 2nd edn (Oxford University Press, 1995).
29. Li, Z. & Lavrentovich, O. D. Surface anchoring and growth pattern of the fielddriven first-order transition in a smectic-A liquid crystal. Phys. Rev. Lett. 73, 280-283 (1994). (Pubitemid 24976037)
30. Lavrentovich, O. D. & Yang, D.-K. Cholesteric cellular patterns with electricfield- controlled line tension. Phys. Rev. E 57, R6269-R6272 (1998). (Pubitemid 128625024)
31. Berreman, D. W., Meiboom, S., Zasadzinski, J. A. & Sammon, M. J. Theory and simulation of freeze-fracture in cholesteric liquid crystals. Phys. Rev. Lett. 57, 1737-1740 (1986).
32. Hori, K., Iimuro, M., Nakao, A. & Toriumi, H. Conformational diversity of symmetric dimer mesogens, a,o-bis(4,40-cyanobiphenyl)octane, -nonane, a,o-bis(4-cyanobiphenyl-40-yloxycarbonyl)propane, and -hexane in crystal structures. J. Mol. Struct. 699, 23-29 (2004). (Pubitemid 38829518)
33. Barry, E., Hensel, Z., Dogic, Z., Shribak, M. & Oldenbourg, R. Entropy-driven formation of a chiral liquid-crystalline phase of helical filaments. Phys. Rev. Lett. 96, 018305 (2006).
34. Coles, H. J. & Pivnenko, M. N. Liquid crystal 'blue phases' with a wide temperature range. Nature 436, 997-1000 (2005). (Pubitemid 41191679)
35. Chen, D. et al. Twist-bend heliconical chiral nematic liquid crystal phase of an achiral rigid bent-core mesogen. Preprint at http://arXiv.org/abs/ 1308.3526 (2013).