@article{33715,
  keywords = {Thin films, Electric fields, Polarization, Domain walls, Switching, Ferroelectric films, Ferroelectric thin films, Piezoresponse force microscopy (PFM), Bottom electrodes, Depolarizing fields, In-plane polarization, Initial orientation, Out-of-plane, Polydomain, Transient polarization, Depolarization},
  author = {A Roelofs and N.A Pertsev and R Waser and F Schlaphof and L.M Eng and C Ganpule and V Nagarajan and Ramamoorthy Ramesh},
  title = {Depolarizing-field-mediated 180° switching in ferroelectric thin films with 90° domains},
  abstract = {Switching of the out-of-plane and in-plane polarizations in polydomain epitaxial PbZr0.2Ti0.8O3 thin films is studied using three-dimensional piezoresponse force microscopy (PFM). It is found that, under an electric field induced between the PFM tip and the bottom electrode, the 180° switching occurs in both c and a domains. After the removal of this field, the spontaneous reversal of the out-of-plane and in-plane polarizations back to the initial orientations takes place, evolving via heterogeneous development of antiparallel 180° domains. The switching of in-plane polarization inside a domains and the preferential formation of reversed 180° domains at 90° domain walls are explained by the effects of the depolarizing fields caused by transient polarization charges appearing on these domain walls. © 2002 American Institute of Physics.},
  year = {2002},
  journal = {Applied Physics Letters},
  volume = {80},
  number = {8},
  pages = {1424-1426},
  issn = {00036951},
  doi = {10.1063/1.1448653},
  note = {cited By 93},
  language = {eng},
}