Open AccessToroidal polar topology in strained ferroelectric polymer
Author(s) -
Mengfan Guo,
Changqing Guo,
Jian Han,
Shulin Chen,
Shan He,
Tongxiang Tang,
Qian Li,
Joseph Strzalka,
Jing Ma,
Di Yi,
Ke Wang,
Ben Xu,
Peng Gao,
Houbing Huang,
LongQing Chen,
Shujun Zhang,
Yuanhua Lin,
CeWen Nan,
Yang Shen
Publication year - 2021
Publication title -
science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 12.556
H-Index - 1186
eISSN - 1095-9203
pISSN - 0036-8075
DOI - 10.1126/science.abc4727
Subject(s) - ferroelectricity , toroid , polymer , polarization (electrochemistry) , concentric , perpendicular , materials science , terahertz radiation , optics , optoelectronics , circular polarization , physics , chemistry , dielectric , composite material , geometry , quantum mechanics , mathematics , plasma , microstrip
Polarization hits a bull's-eye Polymer-based ferroelectric materials are attractive because they can be solution processed cheaply and have much greater flexibility than ceramics. Guoet al. found concentric circular bands of polarization in a ferroelectric polymer that look like a bull's-eye target (see the Perspective by Martin). This self-organized toroidal texture is aligned perpendicularly to the axis of the polymer chains, allowing the authors to demonstrate selective absorption of infrared radiation and manipulation of terahertz radiation. This distinct structure in a polymer could be of interest for exploring and using other exotic effects.Science , this issue p.1050 ; see also p.992
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