@article{Roelofs20021424,
  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{\textdegree} switching in ferroelectric thin films with 90{\textdegree} 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{\textdegree} 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{\textdegree} domains. The switching of in-plane polarization inside a domains and the preferential formation of reversed 180{\textdegree} domains at 90{\textdegree} domain walls are explained by the effects of the depolarizing fields caused by transient polarization charges appearing on these domain walls. {\textcopyright} 2002 American Institute of Physics.},
  year = {2002},
  booktitle = {Applied Physics Letters},
  journal = {Applied Physics Letters},
  series = {Applied Physics Letters},
  volume = {80},
  number = {8},
  pages = {1424-1426},
  issn = {00036951},
  doi = {10.1063/1.1448653},
  note = {cited By 93},
  language = {eng},
}