TY - JOUR
T1 - Experimental test of curvature-driven dynamics in the phase ordering of a two dimensional liquid crystal
AU - Sicilia, Alberto
AU - Arenzon, Jeferson J.
AU - Dierking, Ingo
AU - Bray, Alan J.
AU - Cugliandolo, Leticia F.
AU - Martínez-Perdiguero, Josu
AU - Alonso, Ibon
AU - Pintre, Inmaculada C.
N1 - Sicilia, Alberto Arenzon, Jeferson J. Dierking, Ingo Bray, Alan J. Cugliandolo, Leticia F. Martinez-Perdiguero, Josu Alonso, Ibon Pintre, Inmaculada C. CNPq ; CAPES ; FAPERGS ; Basque Government ; MEC of Spain ; CICYT-FEDER of Spain-EU [MAT2006-13571] J.J.A. is partially supported by the Brazilian agencies CNPq, CAPES, and FAPERGS, L.F.C. is a member of IUF. J.M.P., I.A., and I.C.P. thank the Basque Government and the MEC of Spain, respectively, for support. This work was partially supported by the CICYT-FEDER of Spain-EU ( Project No. MAT2006-13571). 15 AMER PHYSICAL SOC COLLEGE PK 370PZ
PY - 2008/11/7
Y1 - 2008/11/7
N2 - We study electric field driven deracemization in an achiral liquid crystal through the formation and coarsening of chiral domains. It is proposed that deracemization in this system is a curvature-driven process. We test this prediction using the recently obtained exact result for the distribution of hull-enclosed areas in two-dimensional coarsening with nonconserved scalar order parameter dynamics. The experimental data are in very good agreement with the theory. We thus demonstrate that deracemization in such bent-core liquid crystals belongs to the Allen-Cahn universality class, and that the exact formula, which gives us the statistics of domain sizes during coarsening, can also be used as a strict test for this dynamic universality class. © 2008 The American Physical Society.
AB - We study electric field driven deracemization in an achiral liquid crystal through the formation and coarsening of chiral domains. It is proposed that deracemization in this system is a curvature-driven process. We test this prediction using the recently obtained exact result for the distribution of hull-enclosed areas in two-dimensional coarsening with nonconserved scalar order parameter dynamics. The experimental data are in very good agreement with the theory. We thus demonstrate that deracemization in such bent-core liquid crystals belongs to the Allen-Cahn universality class, and that the exact formula, which gives us the statistics of domain sizes during coarsening, can also be used as a strict test for this dynamic universality class. © 2008 The American Physical Society.
KW - SHAPED MOLECULES
U2 - 10.1103/PhysRevLett.101.197801
DO - 10.1103/PhysRevLett.101.197801
M3 - Article
SN - 0031-9007
VL - 101
JO - Physical Review Letters
JF - Physical Review Letters
IS - 19
M1 - 197801
ER -