Ferroelectric Domain Structure in a Copolymer of Vinylidene Fluoride with Trifluoroethylene
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概要
- 論文の詳細を見る
The domain structure of a poled copolymer of vinylidene fluoride with trifluoroethylene is studied through analysis of X-ray diffraction profiles. The crystal size coherent in diffraction is 20-40 nm, being much smaller than the lateral size of crystals observed by electron microscopy; the crystal is mosaic. The asymmetry of the profiles suggests that (100) domains exist in the poled crystals. Using an electric field of a square pulse to freeze the switching process, the change in the domain structure during the ferroelectric switching is investigated by X-ray diffraction. The line profile is found to broaden in integrated width during the switching by several percent, which is interpreted as the induction of reversed domains in crystals. The change in the integrated intensity during the switching is consistent with the rotation of a chain by 180°.
- 社団法人応用物理学会の論文
- 1994-01-15
著者
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Takahashi Yoshiyuki
Department Of Anesthesiology Dokkyo Medical University
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Takahashi Yoshiyuki
Department Of Physics Faculty Of Science Kyoto University
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