Bulletin of the American Physical Society
APS March Meeting 2024
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session RR04: V: Glassy and Disordered Systems
11:30 AM–12:54 PM,
Friday, March 8, 2024
Room: Virtual Room 04
Sponsoring
Units:
DSOFT GSNP
Chair: Carina Karner, Technical University of Vienna
Abstract: RR04.00001 : Frustrated colloidal crystals: order between crystal and gel<!-- notionvc: b5861463-341f-4523-8f4b-59a4434393a6 -->*
11:30 AM–11:42 AM
Presenter:
Carina Karner
(University of Vienna)
Author:
Carina Karner
(University of Vienna)
Conventionally, it is believed that patchy particles need full bonding with their neighbors for crystal formation, and that if complete bonding was hindered due to patch placement, disordered structures would result. However, our computational study challenges this assumption: we deliberately arranged colloidal platelets with rhombic shapes and four small bonding sites in a way that discouraged full bonding. Surprisingly, instead of gels and glasses, we observed a variety of porous crystallites that were intentionally not fully bonded, with dangling bonds enhancing bonding possibilities. For each patch topology, we identified at least three competing polymorphs, including complex hierarchical structures like porous zig-zagging lattices, multi-porous hexagonal assemblies, and star-like and parallel open lattices. Intriguingly, in most systems, no single polymorph dominated, and the overall crystallinity remained at around 30% over extended simulation times. This leads us to the question posed in the title: Are these frustrated crystals a stable crystalline state, or do they constitute a partially ordered glassy state?
References:
[1] Q. Chen, S. C. Bae, S. Granick, "Nature" (2011), volume 469, pages 381–384.
[2] Y. Suzuki, M. Endo, H. Sugiyama, "Nature Communications" (2015), 6, 1–9.
[3] C. Karner, C. Dellago, E. Bianchi, "Nano Letters" (2019), 19, 7806–7815.<!-- notionvc: 277d96b4-4449-4f61-91de-a2d46ee33aa5 -->
*FWF Austria - Fonds-Wissenschaftlicher-Forschung
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