Surface structure of ultrathin copolymer films of ferroelectric vinylidene fluoride ( 70 % ) with trifluoroethylene ( 30 % ) on graphite

@inproceedings{Cai2004SurfaceSO,
  title={Surface structure of ultrathin copolymer films of ferroelectric vinylidene fluoride ( 70 % ) with trifluoroethylene ( 30 % ) on graphite},
  author={Lei Cai and Hongwei Qu and Chenxi Lu and Stephen Ducharme and Peter A. Dowben and Jiandi Zhang},
  year={2004}
}
The structure and local structural distortions, through the polarization manipulation, of crystalline films of ferroelectric vinylidene fluoride(70%) with trifluoroethylene(30%) [P(VDF-TrFE)] copolymer on graphite were studied by scanning tunneling microscopy (STM). A quasispiral twist in CuC bonds with rotations about the polymer chain axis was observed by high-resolution STM, indicating a surface relaxation of the strained copolymer films. Such a relaxation behavior appears to be linked to… CONTINUE READING