Bulletin of the American Physical Society
APS March Meeting 2023
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session W07: Liquid Crystals I
3:00 PM–5:36 PM,
Thursday, March 9, 2023
Room: Room 130
Sponsoring
Unit:
DSOFT
Chair: Chaitanya Joshi, Tufts University
Abstract: W07.00002 : Nematic-to-isotropic phase transition at prepatterned topological defects*
3:12 PM–3:24 PM
Presenter:
Nilanthi P Haputhanthrige
(Kent State University)
Authors:
Nilanthi P Haputhanthrige
(Kent State University)
Miao Jiang
(Department of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China)
Hao Chen
(Department of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China)
Xiayu Feng
(Advanced Materials and Liquid Crystal Institute, Kent State University, Kent)
Maxim O Lavrentovich
(University of Tennessee)
Oleg D Lavrentovich
(Kent State University)
Qihuo Wei
(Southern University of Science and Techn)
Yubin Guo
(Advanced Materials and Liquid Crystal Institute, Kent State University, Kent)
strength defect cores shift away from the cores as the temperature increases. The shape of the isotropic islands at +1/2 defects has a dipolar symmetry, while the islands at -1/2 defects have a trifold symmetry. The effects are associated with the anisotropic surface tension caused by the surface anchoring of the director at the nematic-isotropic interface.
*HNP and ODL work is supported by NSF grant DMS-2106675, MJ and QHW work is supported by NSFC grant 12174177.
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