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Title: Low coercive field of polymer ferroelectric via x-ray induced phase transition

We present an experimental strategy via X-ray irradiation combined with time-resolved X-ray diffraction to reduce a coercive field of ferroelectric thin films. We found in real-time that X-ray irradiation enables the irreversible phase transition from a polar to non-polar phase in ferroelectric poly(vinylidene fluoride-trifluoroethylene) thin films. The non-polar regions act as initial nucleation sites for opposite domains thus reducing the coercive field, directly related to the switching of domains, by 48%.
Authors:
; ; ; ; ; ; ;  [1] ; ;  [2]
  1. School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Oryong-Dong, Buk-Gu, Gwangju 61005 (Korea, Republic of)
  2. School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, Gyeonggi-do 400-746 (Korea, Republic of)
Publication Date:
OSTI Identifier:
22486311
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 107; Journal Issue: 26; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; FERROELECTRIC MATERIALS; FLUORINATED ALIPHATIC HYDROCARBONS; IRRADIATION; NUCLEATION; PHASE TRANSFORMATIONS; POLAR REGIONS; POLYVINYLS; THIN FILMS; TIME RESOLUTION; X RADIATION; X-RAY DIFFRACTION