Bulletin of the American Physical Society
APS March Meeting 2021
Volume 66, Number 1
Monday–Friday, March 15–19, 2021; Virtual; Time Zone: Central Daylight Time, USA
Session F07: Self-and Directed Assembly (Equilibrium and Non-equilibrium) II
11:30 AM–2:30 PM,
Tuesday, March 16, 2021
Room: 07
Sponsoring
Unit:
DSOFT
Chair: Agnese Curatolo, Harvard University
Abstract: F07.00014 : Characterizing the routes to nonequilibrium morphologies in two dimensional microphase formers
2:06 PM–2:18 PM
Live
Presenter:
Bijoy Daga
(Duke University)
Authors:
Bijoy Daga
(Duke University)
Patrick Charbonneau
(Duke University)
Striped patterns emerge in a variety of systems, ranging from diblock copolymers, magnetic and ferroelectric materials, and even in biological tissues. In tissues, in particular, different proposed mechanisms are known to generate similar steady-state structures, but their assembly dynamics can markedly differ. We here consider models, in which the emergence of striped patterns can be understood as a phase transition from an unstable ordered phase to a spatially modulated phase. The generic equilibrium behavior can be described by the Brazovskii free energy functional and their relaxational dynamics by the Swift-Hohenberg equation. On a lattice, microscopic interactions are described by short-range attractive and long-range repulsive interactions, such as in the canonical anisotropic next nearest neighbor Ising (ANNNI) model. Although the equilibrium behavior of these systems is fairly well understood, questions remain concerning their assembly dynamics.
We here describe and quantify the out-of-equilibrium self-assembly of two-dimensional microphase formers for various quenching protocols. We specifically investigate whether the associated modulated phases form via nucleation or through some alternate relaxation pathway.
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700