# Colloquium: Chevron structures in smectic A liquid crystals.

Event Type:
Colloquium
Speaker:
Tiziana Giorgi (New Mexico State University)
Event Date:
Thursday, April 20, 2017 -
3:30pm to 5:00pm
Location:
SMLC 356
Audience:
Faculty/StaffStudents

### Event Description:

Title:  Chevron structures in smectic A liquid crystals.

Abstract:

We study the de Gennes free energy for smectic A liquid crystals to understand the chevron pattern formed in the presence of an applied magnetic field. We identify a small parameter $\epsilon$, and investigate via $\Gamma$-convergence the behaviors of the minimizers when the field strength is of order $\mathcal{O}(\epsilon^{-1})$. We also analyze the more general Chen-Lubensky free energy, and obtain an analogous picture. Numerical simulations illustrating the chevron structures for both energies are included. This is joint work with
C. Garcia-Cerveira and S. Joo.

### Event Contact

Contact Name: Stephen Lau