N-SmA-SmC phase transitions probed by a pair of elastically bound colloids

Physical Review. E
Muhammed Rasi MSurajit Dhara

Abstract

The competing effect of surface anchoring of dispersed microparticles and elasticity of nematic and cholesteric liquid crystals has been shown to stabilize a variety of topological defects. Here we study a pair of colloidal microparticles with homeotropic and planar surface anchoring across N-SmA-SmC phase transitions. We show that below the SmA-SmC phase transition the temperature dependence of interparticle separation (D) of colloids with homeotropic anchoring shows a power-law behavior; D∼(1-T/T_{AC})^{α}, with an exponent α≈0.5. For colloids with planar surface anchoring the angle between the joining line of the centers of the two colloids and the far field director shows characteristic variation elucidating the phase transitions.

References

Mar 21, 1997·Science·P PoulinD A Weitz
Nov 1, 1996·Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics·O V KuksenokE M Terentjev
May 1, 1990·Physical Review. B, Condensed Matter·M BenzekriJ C Rouillon
Jan 4, 2001·Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics·S ShibaharaH Takezoe
Apr 20, 2001·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·P CluzeauH T Nguyen
Mar 12, 2004·The European Physical Journal. E, Soft Matter·P CluzeauH T Nguyen
Oct 26, 2005·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·G LiaoA Jákli
May 23, 2006·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·P V Dolganov, V K Dolganov
Jul 22, 2006·The European Physical Journal. E, Soft Matter·C Bohley, R Stannarius
Oct 10, 2006·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·N M SilvestreM M Telo da Gama
Jan 15, 2011·Physical Review Letters·Clayton P LapointeIvan I Smalyukh
Dec 25, 2012·Nature·Bohdan SenyukIvan I Smalyukh
Feb 14, 2013·Nature Communications·A NychI Muševič
May 22, 2013·Proceedings of the National Academy of Sciences of the United States of America·Qingkun LiuIvan I Smalyukh
Feb 20, 2014·Proceedings of the National Academy of Sciences of the United States of America·Jayasri DontabhaktuniSlobodan Žumer
Apr 15, 2015·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·K P ZuhailS Dhara
Dec 15, 2015·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·K P ZuhailSurajit Dhara
Sep 8, 2016·Proceedings of the National Academy of Sciences of the United States of America·Qingkun LiuIvan I Smalyukh
Feb 7, 2017·Langmuir : the ACS Journal of Surfaces and Colloids·Sergej Püschel-SchlotthauerMartin Schoen
Mar 20, 2008·Soft Matter·Christian Bohley, Ralf Stannarius

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Citations

Sep 19, 2020·Physical Review. E·E J L de OliveiraI N de Oliveira

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